{"id":7663,"date":"2021-10-23T16:57:51","date_gmt":"2021-10-23T08:57:51","guid":{"rendered":"https:\/\/egonlin.com\/?p=7663"},"modified":"2022-10-25T20:05:39","modified_gmt":"2022-10-25T12:05:39","slug":"%e7%ac%ac%e5%85%ab%e8%8a%82%ef%bc%9a%e6%96%87%e4%bb%b6%e7%9a%84%e7%89%a9%e7%90%86%e7%bb%93%e6%9e%84","status":"publish","type":"post","link":"https:\/\/egonlin.com\/?p=7663","title":{"rendered":"\u7b2c\u516b\u8282\uff1a\u6587\u4ef6\u7684\u7269\u7406\u7ed3\u6784"},"content":{"rendered":"<h1>\u4e00\u3001\u601d\u7ef4\u5bfc\u56fe<\/h1>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2022\/10\/image-1666515621383.png'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  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href='https:\/\/egonlin.com\/wp-content\/uploads\/2022\/10\/image-1666515796892.png'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2022\/10\/image-1666515796892.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"file\" \/><\/div><br \/>\n1\u3001\u903b\u8f91\u5206\u914d\u65b9\u5f0f\u6700\u5927\u7684\u7279\u70b9\u5c31\u662f\u7269\u7406\u5b58\u50a8\u4e0a\u8fde\u7eed<br 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lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2021\/10\/image-1666519477317.png'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2021\/10\/image-1666519477317.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"file\" \/><\/div><\/li>\n<li>\uff082\uff09\u3001\u4e0d\u65b9\u4fbf\u6587\u4ef6\u62d3\u5c55<br \/>\n<div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2021\/10\/image-1666519546367.png'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2021\/10\/image-1666519546367.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"file\" \/><\/div><\/li>\n<\/ul>\n<h2>3.2 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data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2022\/10\/image-1666515935307.png'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2022\/10\/image-1666515935307.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"file\" \/><\/div><br \/>\n<div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2022\/10\/image-1666515944968.png'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2022\/10\/image-1666515944968.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"file\" 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data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2022\/10\/image-1666515995107.png'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2022\/10\/image-1666515995107.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"file\" \/><\/div><br \/>\n\u903b\u8f91\u5730\u5740\u4e0e\u7269\u7406\u5730\u5740\u7684\u8f6c\u5316\uff1a<br \/>\n1\u3001\u7528\u6237\u7ed9\u51fa\u903b\u8f91\u5757\u53f7\uff0c\u64cd\u4f5c\u7cfb\u7edf\u4ece\u6587\u4ef6\u76ee\u5f55\u8868\u627e\u5230\u5bf9\u5e94FCB<br 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src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"file\" \/><\/div><\/p>\n<h2>3.3 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class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2022\/10\/image-1666516035489.png'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2022\/10\/image-1666516035489.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"file\" 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src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"file\" \/><\/div><br \/>\n1\u3001\u89e3\u51b3\u65b9\u6cd5\uff1a\u7528\u591a\u4e2a\u7d22\u5f15\u5757\u94fe\u63a5\u5b58\u50a8\uff0cFCB\u4e2d\u5b58\u50a8\u7b2c\u4e00\u4e2a\u7d22\u5f15\u5757\u7684\u4f4d\u7f6e\u5373\u53ef<br 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src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2022\/10\/image-1666516386323.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"file\" 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src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2022\/10\/image-1666516493000.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"file\" \/><\/div><br \/>\n\u5c31\u662f\u5c06\u7d22\u5f15\u8868\u548c\u591a\u7ea7\u7d22\u5f15\u8868\u6df7\u5408\u4f7f\u7528\uff0c\u5f53\u6570\u636e\u5f88\u5c0f\u65f6\uff0c\u5c31\u53ef\u4ee5\u7528\u76f4\u63a5\u7d22\u5f15\uff0c\u5f53\u6570\u636e\u5f88\u5927\u65f6\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528\u591a\u7ea7\u7d22\u5f15\u3002<\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2022\/10\/image-1666516525445.png'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2022\/10\/image-1666516525445.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"file\" \/><\/div><\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2022\/10\/image-1666516662513.png'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2022\/10\/image-1666516662513.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"file\" \/><\/div><\/p>\n<h1>\u4e94\u3001\u4ec0\u4e48\u662f\u903b\u8f91\u7ed3\u6784\uff0c\u4ec0\u4e48\u662f\u7269\u7406\u7ed3\u6784\uff1f<\/h1>\n<p>\u7269\u7406\u7ed3\u6784\uff1a\u672c\u8d28\u4e0a\u6765\u770b\u662f\u5f53\u6211\u4eec\u5728\u8fdb\u884c\u6570\u636e\u7684\u5b58\u50a8\u65f6\uff0c\u64cd\u4f5c\u7cfb\u7edf\u4f1a\u5c06\u6570\u636e\u4fdd\u5b58\u5230\u786c\u76d8\u4e2d\uff0c\u4f46\u662f\u4ed6\u4f1a\u4ee5\u4ec0\u4e48\u6837\u7684\u65b9\u5f0f\u5b58\u50a8\u5c31\u662f\u6240\u8c13\u7684\u7269\u7406\u7ed3\u6784\uff0c\u4f8b\u5982\u64cd\u4f5c\u7cfb\u7edf\u53ef\u80fd\u4f1a\u4ee5\u987a\u5e8f\u6216\u8005\u94fe\u5f0f\u7684\u65b9\u5f0f\u5b58\u50a8\u6570\u636e\u3002\u5bf9\u4e8e\u7528\u6237\u800c\u8a00\uff0c\u64cd\u4f5c\u7cfb\u7edf\u5bf9\u6570\u636e\u7684\u5b58\u50a8\u662f\u4e0d\u53ef\u89c1\u7684\u3002\u7528\u6237\u5e76\u4e0d\u5173\u5fc3\u3002<br 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src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2022\/10\/image-1666516735907.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"file\" \/><\/div><br \/>\n\u84dd\u8272\u7684\u90e8\u5206\uff1a\u5c31\u662f\u7528\u6237\u5bf9\u4e8e\u6587\u4ef6\u91c7\u7528\u7684\u903b\u8f91\u7ed3\u6784\u7684\u5b9a\u4e49<br 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src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2022\/10\/image-1666516939779.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"file\" \/><\/div><\/p>\n<h1>\u516b\u3001\u62d3\u5c55\u8bfb\/\u5199\u6587\u4ef6\u7684\u5b8c\u6574\u6d41\u7a0b<\/h1>\n<p>\u4e0b\u56fe\u662f\u7528\u6237\u7a0b\u5e8f\u8bfb\u5199\u6587\u4ef6\u65f6\u5fc5\u987b\u7ecf\u8fc7\u7684OS\u548c\u786c\u4ef6\u4ea4\u4e92\u7684\u5185\u5b58\u6a21\u578b<br \/>\n<div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2021\/07\/image-1666509898916.png'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2021\/07\/image-1666509898916.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"file\" \/><\/div><br \/>\n\uff081\uff09\u8bfb\u6587\u4ef6<br 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\/>\n\uff082\uff09\u5199\u6587\u4ef6<br \/>\n\u3000\u3000\u7528\u6237\u7a0b\u5e8f\u901a\u8fc7\u7f16\u7a0b\u8bed\u8a00\u63d0\u4f9b\u7684\u5199\u5165\u6587\u4ef6api\u53d1\u8d77\u5bf9\u67d0\u4e2a\u6587\u4ef6\u5199\u5165\u78c1\u76d8\u3002\u6b64\u65f6\u7a0b\u5e8f\u5207\u6362\u5230\u5185\u6838\u6001\u7528\u6237\u7a0b\u5e8f\u5904\u4e8e\u963b\u585e\u72b6\u6001\uff0c\u7531OS\u8d1f\u8d23\u53d1\u8d77\u5bf9\u78c1\u76d8\u6587\u4ef6\u7684\u6570\u636e\u5199\u5165\u3002\u7528\u6237\u5199\u5165\u6570\u636e\u540e\uff0c\u5e76\u4e0d\u662f\u76f4\u63a5\u5199\u5230\u78c1\u76d8\u7684\uff0c\u800c\u662f\u5148\u5199\u5230ByteBuffer\u4e2d\uff0c\u7136\u540e\u518d\u63d0\u4ea4\u5230PageCache\u4e2d\u3002\u6700\u540e\u7531\u64cd\u4f5c\u7cfb\u7edf\u51b3\u5b9a\u4f55\u65f6\u5199\u5165\u78c1\u76d8\u3002\u6570\u636e\u5199\u5165PageCache\u4e2d\u540e\uff0c\u6b64\u65f6\u7a0b\u5e8f\u7531\u5185\u6838\u6001\u5207\u6362\u81f3\u7528\u6237\u6001\u7ee7\u7eed\u8fd0\u884c\u3002<br \/>\n\u7528\u6237\u7a0b\u5e8f\u5c06\u6570\u636e\u5199\u5165\u5185\u6838\u7684PageCache\u7f13\u51b2\u533a\u540e\uff0c\u5373\u8ba4\u4e3a\u5199\u5165\u6210\u529f\u4e86\u3002\u7a0b\u5e8f\u7531\u5185\u6838\u6001\u5207\u6362\u56de\u7528\u4e8e\u6001\uff0c\u53ef\u4ee5\u7ee7\u7eed\u540e\u7eed\u7684\u5de5\u4f5c\u4e86\u3002PageCache\u4e2d\u7684\u6570\u636e\u6700\u7ec8\u5199\u5165\u78c1\u76d8\u662f\u7531\u64cd\u4f5c\u7cfb\u7edf\u5f02\u6b65\u63d0\u4ea4\u81f3\u78c1\u76d8\u7684\u3002\u4e00\u822c\u662f\u5b9a\u65f6\u6216PageCache\u6ee1\u4e86\u7684\u65f6\u5019\u5199\u5165\u3002\u5982\u679c\u7528\u6237\u7a0b\u5e8f\u901a\u8fc7\u8c03\u7528flush\u65b9\u6cd5\u5f3a\u5236\u5199\u5165\uff0c\u5219\u64cd\u4f5c\u7cfb\u7edf\u4e5f\u4f1a\u670d\u4ece\u8fd9\u4e2a\u547d\u4ee4\u3002\u7acb\u5373\u5c06\u6570\u636e\u5199\u5165\u78c1\u76d8\u7136\u540e\u7531\u5185\u6838\u6001\u5207\u6362\u56de\u7528\u6237\u6001\u7ee7\u7eed\u8fd0\u884c\u7a0b\u5e8f\u3002\u4f46\u662f\u8fd9\u6837\u505a\u4f1a\u635f\u5931\u6027\u80fd\uff0c\u4f46\u53ef\u4ee5\u786e\u5207\u7684\u77e5\u9053\u6570\u636e\u662f\u5426\u5df2\u7ecf\u5199\u5165\u78c1\u76d8\u4e86\u3002<br \/>\n(3) \u6587\u4ef6\u8bfb\u5199\u7684\u8be6\u7ec6\u8fc7\u7a0b<br \/>\n1\u3001\u8bfb\u6587\u4ef6<br \/>\n\u3000\u3000\u5982\u4e0b\u6240\u793a\u4e3a\u4e00\u5178\u578bJava\u8bfb\u53d6\u67d0\u6587\u4ef6\u5185\u5bb9\u7684\u7528\u6237\u7f16\u7a0b\u4ee3\u7801\u3002\u63a5\u4e0b\u6765\u6211\u4eec\u8be6\u7ec6\u89e3\u8bf4\u8bfb\u53d6\u6587\u4ef6\u8fc7\u7a0b\u3002<\/p>\n<pre><code>        \/\/ \u4e00\u6b21\u8bfb\u591a\u4e2a\u5b57\u8282\n        byte[] tempbytes = new byte[100];\n        int byteread = 0;\n        in = new FileInputStream(fileName);\/\/\u2460\n        ReadFromFile.showAvailableBytes(in);\n        \/\/ \u8bfb\u5165\u591a\u4e2a\u5b57\u8282\u5230\u5b57\u8282\u6570\u7ec4\u4e2d\uff0cbyteread\u4e3a\u4e00\u6b21\u8bfb\u5165\u7684\u5b57\u8282\u6570\n        while ((byteread = in.read(tempbytes)) != -1) { \/\/\u2461\n            System.out.write(tempbytes, 0, byteread);\n        }<\/code><\/pre>\n<p>\u3000\u3000\u9996\u5148\u901a\u8fc7\u4f4d\u7f6e\u2460\u7684\u4ee3\u7801\u53d1\u8d77\u4e00\u4e2aopen\u7684\u7cfb\u7edf\u8c03\u7528\uff0c\u7a0b\u5e8f\u7531\u7528\u6237\u6001\u5207\u6362\u5230\u5185\u6838\u6001\u3002\u64cd\u4f5c\u7cfb\u7edf\u901a\u8fc7\u6587\u4ef6\u5168\u8def\u5f84\u540d\u5728\u6587\u4ef6\u76ee\u5f55\u4e2d\u627e\u5230\u76ee\u6807\u6587\u4ef6\u540d\u5bf9\u5e94\u7684\u6587\u4ef6iNode\u6807\u8bc6ID\uff0c\u7136\u540e\u7528\u8fd9\u4e2aiNode\u6807\u8bc6ID\u5728iNode\u7d22\u5f15\u6587\u4ef6\u627e\u5230\u76ee\u6807\u6587\u4ef6iNode\u8282\u70b9\u6570\u636e\u5e76\u52a0\u8f7d\u5230\u5185\u6838\u7a7a\u95f4\u4e2d\u3002\u8fd9\u4e2aiNode\u8282\u70b9\u5305\u542b\u4e86\u6587\u4ef6\u7684\u5404\u79cd\u5c5e\u6027\uff08\u521b\u5efa\u65f6\u95f4\uff0c\u5927\u5c0f\u4ee5\u53ca\u78c1\u76d8\u5757\u7a7a\u95f4\u5360\u7528\u4fe1\u606f\u7b49\u7b49\uff09\u3002\u7136\u540e\u518d\u7531\u5185\u6838\u6001\u5207\u6362\u56de\u7528\u6237\u6001\uff0c\u8fd9\u6837\u7a0b\u5e8f\u5c31\u83b7\u5f97\u4e86\u64cd\u4f5c\u8fd9\u4e2a\u6587\u4ef6\u7684\u6587\u4ef6\u63cf\u8ff0\u3002\u63a5\u4e0b\u6765\u5c31\u53ef\u4ee5\u6b63\u5f0f\u5f00\u59cb\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9\u4e86\u3002<br 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class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2021\/07\/image-1666514077375.png'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2021\/07\/image-1666514077375.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"file\" \/><\/div><br 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alt=\"file\" \/><\/div><br \/>\n\u2460\u6839\u636e\u6587\u4ef6\u8def\u5f84\u4ece\u6587\u4ef6\u76ee\u5f55\u4e2d\u627e\u5230iNode ID\u3002<br 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\/>\n\u3000\u3000iNode\u5c31\u662f\u6587\u4ef6\u5c5e\u6027\u7d22\u5f15\u6570\u636e\u4e86\u3002\u78c1\u76d8\u683c\u5f0f\u5316\u65f6OS\u5c31\u4f1a\u628a\u78c1\u76d8\u5206\u533a\u6210iNode\u533a\u548c\u6570\u636e\u533a\u3002iNode\u8282\u70b9\u5c31\u5305\u542b\u4e86\u6587\u4ef6\u7684\u4e00\u4e9b\u5c5e\u6027\u4fe1\u606f\uff0c\u6bd4\u5982\u6587\u4ef6\u5927\u5c0f\u3001\u521b\u5efa\u4fee\u6539\u65f6\u95f4\u3001\u4f5c\u8005\u7b49\u7b49\u3002\u5176\u4e2d\u6700\u91cd\u8981\u7684\u662f\u8fd8\u5b58\u6709\u6574\u4e2a\u6587\u4ef6\u6570\u636e\u5728\u78c1\u76d8\u4e0a\u7684\u5206\u5e03\u60c5\u51b5\uff08\u6587\u4ef6\u5360\u7528\u4e86\u54ea\u4e9b\u78c1\u76d8\u5757\uff09\u3002<br \/>\n\u2461\u6839\u636eiNode ID\u4eceInode\u7d22\u5f15\u4e2d\u627e\u5230\u6587\u4ef6\u5c5e\u6027\u3002<br \/>\n\u3000\u3000\u5f97\u5230iNode\u6807\u8bc6\u7684ID\u540e\uff0c\u5c31\u53ef\u4ee5\u53bbiNode\u6570\u636e\u4e2d\u67e5\u627e\u5230\u5bf9\u5e94\u7684\u6587\u4ef6\u5c5e\u6027\u4e86,\u5e76\u52a0\u8f7d\u5230\u5185\u5b58\uff0c\u65b9\u4fbf\u540e\u7eed\u8bfb\u5199\u6587\u4ef6\u65f6\u5feb\u901f\u83b7\u5f97\u78c1\u76d8\u5b9a\u4f4d\u3002iNode\u6570\u636e\u7ed3\u6784\u5e94\u8be5\u7c7b\u4f3c\u54c8\u5e0c\u7ed3\u6784\u4e86\uff0ckey\u5c31\u662fiNode\u6807\u8bc6ID\uff0cvalue\u5c31\u662f\u5177\u4f53\u67d0\u4e2a\u6587\u4ef6\u7684\u5c5e\u6027\u6570\u636e\u5bf9\u8c61\u4e86\u3002\u6240\u4ee5\u5b83\u7684\u7b97\u6cd5\u65f6\u95f4\u590d\u6742\u5ea6\u5c31\u662fO(1)\u3002\u5177\u4f53\u7ec6\u8282\u6211\u6682\u65f6\u8fd8\u6ca1\u5f04\u6e05\u695a\uff0c\u8fd9\u4e0d\u662f\u91cd\u70b9\u3002<br \/>\n\u3000\u3000\u6211\u4eec\u7cfb\u7edf\u4e2d\u7684\u6587\u4ef6\u5b83\u7684\u6587\u4ef6\u5c5e\u6027\uff08iNode\uff09\u548c\u5b83\u7684\u6570\u636e\u6b63\u6587\u662f\u5206\u5f00\u5b58\u50a8\u7684\u3002\u6587\u4ef6\u5c5e\u6027\u4e2d\u6709\u6587\u4ef6\u6570\u636e\u6240\u5728\u78c1\u76d8\u5757\u7684\u4f4d\u7f6e\u4fe1\u606f\u3002<br \/>\n\u2462\u6839\u636e\u6587\u4ef6\u5c5e\u6027\u4e2d\u7684\u78c1\u76d8\u7a7a\u95f4\u5757\u4fe1\u606f\u627e\u5230\u9700\u8981\u8bfb\u53d6\u7684\u6570\u636e\u6240\u5728\u7684\u78c1\u76d8\u5757\u7684\u7269\u7406\u4f4d\u7f6e<br \/>\n\u3000\u3000\u6587\u4ef6\u5c5e\u6027\u4e5f\u5c31\u662fiNode\u8282\u70b9\u8fd9\u4e2a\u6570\u636e\u7ed3\u6784\uff0c\u91cc\u9762\u5305\u542b\u4e86\u6587\u4ef6\u6b63\u6587\u6570\u636e\u5728\u78c1\u76d8\u7269\u7406\u4f4d\u7f6e\u4e0a\u7684\u5206\u5e03\u60c5\u51b5\u3002\u78c1\u76d8\u8bfb\u5199\u90fd\u662f\u4ee5\u5757\u4e3a\u5355\u4f4d\u7684\u3002\u6240\u4ee5\u8fd9\u4e2a\u4f4d\u7f6e\u4fe1\u606f\u5176\u5b9e\u4e5f\u5c31\u662f\u4e00\u4e2a\u6307\u5411\u78c1\u76d8\u5757\u7684\u7269\u7406\u5730\u5740\u6307\u9488\u3002<br \/>\n\u3000\u3000\u5176\u7ed3\u6784\u56fe\u5982\u4e0b\u3002<br \/>\n<div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2021\/07\/image-1666514117158.png'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2021\/07\/image-1666514117158.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"file\" \/><\/div><br \/>\n\u6587\u4ef6\u5c5e\u6027\u91cc\u5c31\u5305\u542b\u4e86\u6587\u4ef6\u6b63\u6587\u6570\u636e\u5360\u6709\u78c1\u76d8\u6240\u6709\u4fe1\u606f\u3002\u4f46\u662f\u7531\u4e8e\u6587\u4ef6\u5c5e\u6027\u5927\u5c0f\u6709\u9650\u5236\uff0c\u800c\u6587\u4ef6\u5927\u5c0f\u6ca1\u6709\u9650\u5236\u3002\u8fd9\u6837\u4f1a\u5bfc\u81f4\u78c1\u76d8\u5757\u5360\u7528\u4fe1\u606f\u8d85\u51fa\u9650\u5236\u3002\u6240\u4ee5\u6700\u540e\u4e00\u4e2a\u78c1\u76d8\u6570\u636e\u9879\u8bbe\u8ba1\u4e3a\u7279\u6b8a\u7684\u4f5c\u7528\u3002\u5b83\u662f\u4e00\u4e2a\u6307\u5411\u66f4\u591a\u78c1\u76d8\u5360\u7528\u4fe1\u606f\u6570\u636e\u7684\u6307\u9488\u3002\u8fd9\u4e9b\u66f4\u591a\u4fe1\u606f\u5b58\u653e\u5728\u666e\u901a\u7684\u6570\u636e\u533a\u3002\u8fd9\u6837\u5f53\u6587\u4ef6iNode\u52a0\u8f7d\u5230\u5185\u5b58\u540e\uff0c\u53ef\u4ee5\u628a\u5176\u4ed6\u66f4\u591a\u78c1\u76d8\u5757\u4fe1\u606f\u4e00\u8d77\u52a0\u8f7d\u8fdb\u6765\u3002\u8fd9\u6837\u5c31\u907f\u514d\u4e86iNode\u7d22\u5f15\u6587\u4ef6\u592a\u5927\u7684\u95ee\u9898\u3002<br \/>\n\u540e\u7eed\u7684\u6587\u4ef6\u8bfb\u5199\u7cfb\u7edf\u8c03\u7528\uff0c\u7531\u7528\u6237\u6001\u5207\u6362\u81f3\u5185\u6838\u6001\u3002\u64cd\u4f5c\u7cfb\u7edf\u5c31\u53ef\u4ee5\u6839\u636e\u6587\u4ef6\u6570\u636e\u7684\u76f8\u5bf9\u4f4d\u7f6e\uff08\u504f\u79fb\u91cf\uff09\u5feb\u901f\u4eceiNode\u4e2d\u7684\u78c1\u76d8\u5757\u5360\u7528\u6570\u636e\u7ed3\u6784\u4e2d\u627e\u5230\u5176\u5bf9\u5e94\u7684\u78c1\u76d8\u7269\u7406\u4f4d\u7f6e\u5728\u54ea\u91cc\u4e86\u3002\u5f88\u660e\u663e\u8fd9\u4e2a\u6570\u636e\u7ed3\u6784\u7c7b\u4f3c\u54c8\u5e0c\u7ed3\u6784\uff0c\u5176\u7b97\u6cd5\u590d\u6742\u5ea6\u5c31\u662fO(1)\u3002<br \/>\n\u3000\u3000\u6bd4\u5982\u6211\u4eec\u73b0\u5728\u8ba8\u8bba\u7684\u8bfb\u53d6\u6570\u636e\u3002\u6bcf\u6b21\u7528\u6237\u4ee3\u7801\u7684api\u8c03\u7528read\u65b9\u6cd5\u65f6\u3002\u7531\u4e8e\u65f6\u4ece\u5934\u5f00\u59cb\u8bfb\u53d6\uff0c\u6240\u4ee5OS\u5c31\u4ece\u4e0a\u56fe\u4e2d\u201c\u78c1\u76d8\u57570\u201d\u6570\u636e\u9879\u5f00\u59cb\u8fed\u4ee3\uff0c\u83b7\u53d6\u5bf9\u5e94\u7684\u7269\u7406\u78c1\u76d8\u5757\u8d77\u59cb\u5730\u5740\u5f00\u59cb\u8bfb\u53d6\u6570\u636e\u5e76\u62f7\u8d1d\u81f3PageCache\u7f13\u51b2\u533a\uff0c\u518d\u62f7\u8d1d\u81f3\u7528\u6237\u8fdb\u7a0b\u7f13\u51b2\u533a\u3002\u8fd9\u6837\u7528\u6237\u4ee3\u7801\u5c31\u53ef\u4ee5\u83b7\u53d6\u8fd9\u4e9b\u6570\u636e\u4e86\u3002<br \/>\n\u8003\u8651\u5230\u53e6\u5916\u4e00\u79cd\u968f\u673a\u8bfb\u7684\u573a\u666f\u3002\u6211\u4eec\u5e76\u4e0d\u662f\u628a\u6574\u4e2a\u6587\u4ef6\u4ece\u5934\u5f00\u59cb\u8bfb\u4e00\u904d\u3002\u800c\u662f\u9700\u8981\u76f4\u63a5\u5b9a\u4f4d\u5230\u6587\u4ef6\u7684\u4e2d\u95f4\u67d0\u4e2a\u4f4d\u7f6e\u5f00\u59cb \u8bfb\u53d6\u90e8\u5206\u5185\u5bb9\u3002\u5982\u4e0b\u6240\u793a\u3002<\/p>\n<pre><code>RandomAccessFile raf=new RandomAccessFile(new File(&quot;D:\\\\3\\\\test.txt&quot;), &quot;r&quot;);   \n                \/\/\u83b7\u53d6RandomAccessFile\u5bf9\u8c61\u6587\u4ef6\u6307\u9488\u7684\u4f4d\u7f6e\uff0c\u521d\u59cb\u4f4d\u7f6e\u662f0  \n            System.out.println(&quot;RandomAccessFile\u6587\u4ef6\u6307\u9488\u7684\u521d\u59cb\u4f4d\u7f6e:&quot;+raf.getFilePointer());  \n            raf.seek(pointe);\/\/\u79fb\u52a8\u6587\u4ef6\u6307\u9488\u4f4d\u7f6e  \n            byte[]  buff=new byte[1024];  \n            \/\/\u7528\u4e8e\u4fdd\u5b58\u5b9e\u9645\u8bfb\u53d6\u7684\u5b57\u8282\u6570  \n            int hasRead=0;  \n            \/\/\u5faa\u73af\u8bfb\u53d6  \n            while((hasRead=raf.read(buff))&gt;0){  \n                \/\/\u6253\u5370\u8bfb\u53d6\u7684\u5185\u5bb9,\u5e76\u5c06\u5b57\u8282\u8f6c\u4e3a\u5b57\u7b26\u4e32\u8f93\u5165  \n                System.out.println(new String(buff,0,hasRead));       \n            }<\/code><\/pre>\n<p>\u3000\u3000\u7a0b\u5e8f\u4ee3\u7801\u8c03\u7528seek\u65b9\u6cd5\u76f4\u63a5\u5b9a\u4f4d\u5230\u67d0\u4e2a\u6587\u4ef6\u76f8\u5bf9\u4f4d\u7f6e\u5f00\u59cb\u8bfb\u53d6\u5185\u5bb9\u3002\u5b9e\u9645\u4e0a\u5c31\u662f\u8c03\u7528\u4e86OS\u7ba1\u7406\u6587\u4ef6\u7684\u7cfb\u7edf\u8c03\u7528seek\u51fd\u6570\u3002\u8fd9\u4e2a\u7cfb\u7edf\u8c03\u7528\u9700\u8981\u4f20\u9012\u4e00\u4e2a\u6587\u4ef6\u76f8\u5bf9\u4f4d\u7f6e\u4e5f\u5c31\u662f\u504f\u79fb\u91cf\uff0c\u4e0d\u662f\u6307\u78c1\u76d8\u7684\u7269\u7406\u4f4d\u7f6e\u3002\u6587\u4ef6\u7684\u76f8\u5bf9\u4f4d\u7f6e\u504f\u79fb\u91cf\u662f\u4ece0\u5f00\u59cb\u7684\uff0c\u7ed3\u675f\u4f4d\u7f6e\u548c\u6587\u4ef6\u7684\u5927\u5c0f\u5b57\u8282\u6570\u76f8\u7b49\u3002\u64cd\u4f5c\u7cfb\u7edf\u62ff\u5230\u8fd9\u4e2a\u504f\u79fb\u91cf\u540e\uff0c\u5c31\u53ef\u4ee5\u8ba1\u7b97\u51fa\u6587\u4ef6\u6240\u5c5e\u7684\u903b\u8f91\u5757\u7f16\u53f7\u3002\u56e0\u4e3a\u6bcf\u4e2a\u5757\u662f\u56fa\u5b9a\u5927\u5c0f\u7684\uff0c\u6240\u4ee5\u80fd\u8ba1\u7b97\u51fa\u6765\u3002\u901a\u8fc7\u6587\u4ef6\u5c5e\u6027\u7684\u903b\u8f91\u78c1\u76d8\u5757\u4fe1\u606f\u5c31\u80fd\u5f97\u5230\u78c1\u76d8\u5757\u7684\u7269\u7406\u4f4d\u7f6e\u3002\u4ece\u800c\u53ef\u4ee5\u5feb\u901f\u76f4\u63a5\u5b9a\u4f4d\u5230\u78c1\u76d8\u7269\u7406\u5757\u8bfb\u53d6\u5230\u9700\u8981\u7684\u6570\u636e\u3002\u8fd9\u91cc\u8bf4\u7684\u903b\u8f91\u5757\u548c\u7269\u7406\u5757\u7684\u6982\u5ff5\u662f\u6709\u533a\u522b\u7684\u3002\u903b\u8f91\u5757\u5c5e\u4e8e\u5f53\u524d\u7684\u6587\u4ef6\u4ece0\u5f00\u59cb\u7f16\u53f7\uff0c\u7269\u7406\u5757\u624d\u662f\u78c1\u76d8\u771f\u6b63\u7684\u5b58\u653e\u6570\u636e\u7684\u533a\u57df\uff0c\u5c5e\u4e8e\u5168\u5c40\u7684\u3002\u7f16\u53f7\u81ea\u7136\u4e0d\u662f\u4ece0\u5f00\u59cb\u7684\u3002<br \/>\n2\u3001\u5199\u6587\u4ef6<br \/>\n\u5199\u6587\u4ef6\u7684\u8fc7\u7a0b\u548c\u524d\u9762\u9610\u8ff0\u7684\u5dee\u4e0d\u591a\uff0c\u76f8\u5173\u7684\u77e5\u8bc6\u70b9\u4e5f\u5728\u8bfb\u6587\u4ef6\u4e2d\u5df2\u7ecf\u987a\u5e26\u63cf\u8ff0\u4e86\u3002\u5c31\u4e0d\u5728\u8d58\u8ff0\u4e86\u3002\u8fd9\u91cc\u5c31\u8bf4\u4e9b\u7279\u522b\u9700\u8981\u6ce8\u610f\u7684\u70b9\u5c31\u884c\u3002<br \/>\n<div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2021\/07\/image-1666514239624.png'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2021\/07\/image-1666514239624.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"file\" \/><\/div><br \/>\n\u2462\u6839\u636e\u7a7a\u95f2\u5757\u7d22\u5f15\u627e\u5230\u53ef\u4ee5\u5199\u5165\u7684\u7269\u7406\u4f4d\u7f6e\u5e76\u5199\u5165<br \/>\n\u3000\u3000\u5982\u4e0a\u56fe\u6240\u793a\uff0cOS\u5199\u6587\u4ef6\u5185\u5bb9\u65f6\u9996\u5148\u8981\u8bbf\u95ee\u78c1\u76d8\u7a7a\u95f2\u5757\u7d22\u5f15\u8868\u3002\u8fd9\u662f\u4e2a\u4ec0\u4e48\u4e1c\u897f\u5462\uff1f\u7531\u4e8e\u78c1\u76d8\u5f88\u5927\uff0c\u4e0d\u53ef\u80fd\u6bcf\u6b21\u5199\u6570\u636e\u65f6\uff0c\u90fd\u8ba9\u78c1\u5934\u4ece\u5934\u5230\u5c3e\u904d\u5386\u4e00\u6b21\u624d\u80fd\u627e\u5230\u7a7a\u95f2\u4f4d\u7f6e\u3002\u8fd9\u6837\u6548\u7387\u53ef\u60f3\u800c\u77e5\u7684\u5dee\u52b2\u3002\u6240\u4ee5OS\u4f1a\u628a\u78c1\u76d8\u4e0a\u7684\u7a7a\u95f2\u5757\u7d22\u5f15\u8d77\u6765\u5b58\u653e\u5728\u78c1\u76d8\u67d0\u4e2a\u4f4d\u7f6e\u4e0a\u3002\u540e\u7eed\u78c1\u76d8\u5b58\u50a8\u548c\u5220\u9664\u6587\u4ef6\u5185\u5bb9\u65f6\u90fd\u901a\u8fc7\u8fd9\u4e2a\u7a7a\u95f2\u5757\u7d22\u5f15\u8868\u5feb\u901f\u5b9a\u4f4d\uff0c\u540c\u65f6\u5220\u9664\u6570\u636e\u4e5f\u4f1a\u66f4\u65b0\u7d22\u5f15\u8868\u589e\u52a0\u7a7a\u95f2\u5757\u3002<br \/>\n\u7a7a\u95f2\u5757\u8bb0\u5f55\u7d22\u5f15\u7684\u5b9e\u73b0\u5e38\u7528\u6709\u4e24\u79cd\uff0c\u4e00\u79cd\u662f\u6211\u4eec\u719f\u6089\u7684\u94fe\u8868\u7ed3\u6784\uff0c\u8fd8\u6709\u4e00\u79cd\u662f\u4f4d\u56fe\u7ed3\u6784\u3002\u8fd9\u91cc\u5c31\u4e0d\u8be6\u7ec6\u8ba8\u8bba\u4e86\u3002<br \/>\n\u3000\u3000\u2463\u5199\u5165\u6570\u636e\u540e\u66f4\u65b0iNode\u91cc\u7684\u78c1\u76d8\u5360\u7528\u5757\u7d22\u5f15<br \/>\n\u3000\u3000\u6570\u636e\u5199\u5165\u540e\uff0c\u90a3\u4e48\u8fd9\u4e2a\u7a7a\u95f2\u5757\u5c31\u88ab\u5360\u7528\u4e86\uff0c\u81ea\u7136\u4e5f\u5c31\u9700\u8981\u66f4\u65b0\u4e0biNode\u6587\u4ef6\u5c5e\u6027\u91cc\u7684\u78c1\u76d8\u5360\u7528\u5757\u7d22\u5f15\u6570\u636e\u4e86\u3002<br \/>\n\u6211\u4eec\u524d\u9762\u8bf4\u7684\u5199\u6587\u4ef6\u90fd\u662f\u53ea\u8bb2\u4e86\u5c3e\u90e8\u8ffd\u52a0\u8fd9\u79cd\u65b9\u5f0f\u3002\u4f46\u662f\u5b9e\u9645\u4e0a\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7RandomAccessFile\u7c7b\u5b9e\u73b0\u6587\u4ef6\u968f\u673a\u4f4d\u7f6e\u5199\u529f\u80fd\u3002\u4f46\u662f\u6211\u4eec\u540c\u65f6\u4e5f\u6709\u4e00\u4e9b\u56f0\u60d1\u3002\u4e3a\u5565\u4e0d\u80fd\u76f4\u63a5\u5728\u4e2d\u95f4\u67d0\u4e2a\u4f4d\u7f6e\u63d2\u5165\u6211\u4eec\u8981\u5199\u7684\u5185\u5bb9\uff0c\u800c\u662f\u8981\u5148\u628a\u63d2\u5165\u4f4d\u7f6e\u540e\u9762\u7684\u5185\u5bb9\u622a\u53d6\u653e\u5165\u4e34\u65f6\u6587\u4ef6\u4e2d\u3002\u63d2\u5165\u65b0\u5185\u5bb9\u540e\uff0c\u518d\u628a\u4e34\u65f6\u6587\u4ef6\u5185\u5bb9\u5c3e\u90e8\u8ffd\u52a0\u5230\u539f\u6765\u7684\u6587\u4ef6\u4e2d\u6765\u5b9e\u73b0\u6587\u4ef6\u4fee\u6539\uff1f\u4ee3\u7801\u5982\u4e0b\u6240\u793a\u3002<\/p>\n<pre><code>public static void insert(String fileName, long pos, String insertContent) throws IOException{\n        File file = File.createTempFile(&quot;tmp&quot;, null);\n        file.deleteOnExit();\n        RandomAccessFile raf = new RandomAccessFile(fileName, &quot;rw&quot;);\n        FileInputStream fileInputStream = new FileInputStream(file);\n        FileOutputStream fileOutputStream = new FileOutputStream(file);\n        raf.seek(pos);\n        byte[] buff = new byte[64];\n        int hasRead = 0;\n        while((hasRead = raf.read(buff)) &gt; 0){\n            fileOutputStream.write(buff);\n        }\n        raf.seek(pos);\n        raf.write(insertContent.getBytes());\n        \/\/\u8ffd\u52a0\u6587\u4ef6\u63d2\u5165\u70b9\u4e4b\u540e\u7684\u5185\u5bb9\n        while((hasRead = fileInputStream.read(buff)) &gt; 0){\n            raf.write(buff, 0, hasRead);\n        }\n        raf.close();\n        fileInputStream.close();\n        fileOutputStream.close();\n    }<\/code><\/pre>\n<p>\u3000\u3000\u6309\u7167\u6211\u4eec\u4e0a\u9762\u7684\u9610\u8ff0\uff0c\u5199\u5165\u7684\u6587\u4ef6\u5185\u5bb9\u5b8c\u5168\u53ef\u4ee5\u5b58\u5165\u78c1\u76d8\u4e0a\u7684\u4e00\u4e2a\u65b0\u5757\uff0c\u7136\u540e\u66f4\u65b0\u4e0biNode\u5c5e\u6027\u91cc\u7684\u5360\u7528\u78c1\u76d8\u5757\u7d22\u5f15\u6570\u636e\u5373\u53ef\u3002\u4e5f\u4e0d\u9700\u8981\u771f\u7684\u53bb\u79fb\u52a8\u78c1\u76d8\u4e0a\u7684\u6240\u6709\u6570\u636e\u5757\u3002\u770b\u4e0a\u53bb\u6210\u672c\u4e5f\u5f88\u5c0f\uff0c\u53ef\u4e3a\u5565\u6211\u4eec\u7684\u7f16\u7a0bapi\u5374\u90fd\u4e0d\u652f\u6301\u5462\uff1f<br 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[&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[2],"tags":[],"_links":{"self":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/7663"}],"collection":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7663"}],"version-history":[{"count":0,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/7663\/revisions"}],"wp:attachment":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7663"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7663"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7663"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}