{"id":1914,"date":"2021-08-03T11:18:30","date_gmt":"2021-08-03T03:18:30","guid":{"rendered":"https:\/\/egonlin.com\/?p=1914"},"modified":"2022-02-07T16:45:35","modified_gmt":"2022-02-07T08:45:35","slug":"%e5%88%87%e7%89%87","status":"publish","type":"post","link":"https:\/\/egonlin.com\/?p=1914","title":{"rendered":"\u5207\u7247"},"content":{"rendered":"

\u5207\u7247Slice<\/h1>\n

\u4e00 \u5207\u7247\u4ecb\u7ecd<\/h2>\n

\u200b \u5207\u7247\uff08Slice\uff09\u987e\u540d\u601d\u4e49\u5c31\u662f\u201c\u628a\u4e1c\u897f\u62ff\u8fc7\u6765\u5207\u4e00\u5200\uff0c\u5f97\u5230\u4e00\u7247\uff0c\u54c8\u54c8\u54c8\uff0c\u8bdd\u7cd9\u7406\u4e0d\u7cd9\uff0c\u53ea\u662f\u6ce8\u610f\u4e00\u4e0b\u6b64\u5904\u7684\u5207\u4e00\u5200\u5e76\u4e0d\u662f\u5207\u8d70\u4e86\u54c8\u201d\u3002<\/p>\n

\u200b \u6211\u4eec\u53ef\u4ee5\u5bf9\u6570\u7ec4\u3001\u5207\u7247\u3001\u6307\u5411\u6570\u7ec4\u6216\u5207\u7247\u7684\u6307\u9488\u3001\u5b57\u7b26\u4e32\u8fdb\u884c\u5207\u7247\u64cd\u4f5c\uff0c\u5f97\u5230\u7684\u662f\u4e00\u4e2a\u5207\u7247Slice\u6216\u5b50\u5b57\u7b26\u4e32\u3002<\/p>\n

\u200b \u7b80\u5355\u5207\u7247\u64cd\u4f5c\uff1as[i:j]<\/p>\n

\/\/0\u3001\u5176\u4e2ds\u53ef\u4ee5\u662f\u6570\u7ec4\u3001\u5207\u7247\u3001\u6307\u5411\u6570\u7ec4\u6216\u5207\u7247\u7684\u6307\u9488\u3001\u5b57\u7b26\u4e32\n\/\/1\u3001\u5176\u4e2d0 \u2264 i\u2264 j\u2264 cap(s)\uff0c\u5f15\u7528s\u7684\u4ece\u7b2ci\u4e2a\u5143\u7d20\u5f00\u59cb\u5230\u7b2cj-1\u4e2a\u5143\u7d20\u7684\u5b50\u5e8f\u5217\uff0c\n\/\/2\u3001\u5b50\u5e8f\u5217\u662f\u4e00\u4e2a\u65b0\u7684\u5207\u7247\u6216\u8005\u5b50\u5b57\u7b26\u4e32\uff0c\u65b0\u7684slice\u5c06\u53ea\u6709j-i\u4e2a\u5143\u7d20\uff0c\n\/\/3\u3001\u5982\u679ci\u4f4d\u7f6e\u7684\u7d22\u5f15\u88ab\u7701\u7565\u7684\u8bdd\u5c06\u4f7f\u75280\u4ee3\u66ff\uff0c\u5373s[:j]\u4e0es[0:j]\u7b49\u4ef7\uff0c\n\/\/4\u3001\u5982\u679cj\u4f4d\u7f6e\u7684\u7d22\u5f15\u88ab\u7701\u7565\u7684\u8bdd\u5c06\u4f7f\u7528len(s)\u4ee3\u66ff\uff0c\u5373s[1:j]\u4e0es[:j]\u7b49\u4ef7\u3002\n\/\/5\u3001\u6240\u4ee5s[:]\u4ee3\u8868\u5f15\u7528\u6240\u6709\u5143\u7d20<\/code><\/pre>\n
\u200b   \u5b8c\u6574\u5207\u7247\u64cd\u4f5c\uff1as[i:j:max]<\/p>\n
\u200b   \u5207\u7247Slice\u7c7b\u578b\u5176\u5b9e\u662f\u4e00\u4e2a\u5143\u7d20\u7c7b\u578b\u76f8\u540c\u4e14\u957f\u5ea6\u53ef\u53d8\u7684\u5e8f\u5217\u3002\u5207\u7247\u548c\u6570\u7ec4\u6709\u7740\u7d27\u5bc6\u7684\u8054\u7cfb\uff0c<\/p>\n
    \n
  • \n
    1\u3001\u4e0e\u6570\u7ec4\u76f8\u540c\u7684\u662f\uff1a<\/p>\n
    1\u3001\u5207\u7247\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u4e5f\u90fd\u662f\u76f8\u540c\u7684\u7c7b\u578b\n\u4e8b\u5b9e\u4e0a\uff0c\u4e00\u4e2a\u5207\u7247\u5e95\u5c42\u5c31\u662f\u6307\u5411\u4e00\u4e2a\u6570\u7ec4\u7684\uff0c\u5373\u5207\u7247\u5c31\u662f\u57fa\u4e8e\u6570\u7ec4\u7c7b\u578b\u505a\u7684\u4e00\u5c42\u5c01\u88c5\uff0c\u6240\u4ee5\u8bf4\u5207\u7247\u5185\u5143\u7d20\u7c7b\u578b\u76f8\u540c\u4e5f\u4e0d\u8db3\u4e3a\u5947\n\n2\u3001\u90fd\u662f\u57fa\u4e8e\u7528\u7d22\u5f15\u8bbf\u95ee\u5143\u7d20<\/code><\/pre>\n<\/li>\n
  • \n
    2\u3001\u4e0e\u6570\u7ec4\u4e0d\u540c\u7684\u662f<\/p>\n
    1\u3001\u6570\u7ec4\u662f\u957f\u5ea6\u4e0d\u53ef\u53d8\u7684\u5e8f\u5217\uff0c\u800c\u5207\u7247\u5219\u662f\u957f\u5ea6\u53ef\u53d8\u7684\u5e8f\u5217\uff0c\n\u6570\u7ec4\u7c7b\u578b\u662f\uff1a[\u56fa\u5b9a\u957f\u5ea6]T\n\u800c\u5207\u7247\u7c7b\u578b\u4e00\u822c\u5199\u4f5c\u662f\uff1a[]T\uff0c\u6240\u4ee5\u8bf4\uff0c\u5207\u7247\u7684\u8bed\u6cd5\u548c\u6570\u7ec4\u5f88\u50cf\uff0c\u53ea\u662f\u6ca1\u6709\u56fa\u5b9a\u957f\u5ea6\u800c\u5df2\u3002\n2\u3001\u6570\u7ec4\u662f\u4e00\u4e2a\u503c\u7c7b\u578b\uff0c\u800c\u5207\u7247\u662f\u4e00\u4e2a\u5f15\u7528\u7c7b\u578b<\/code><\/pre>\n<\/li>\n<\/ul>\n
    \u200b   \u5207\u7247\u7531\u4e09\u4e2a\u90e8\u5206\u6784\u6210\uff1a\u6307\u9488\u3001\u957f\u5ea6\u3001\u5bb9\u91cf<\/p>\n
    \/\/1\u3001\u6307\u9488\u6307\u5411\u7684\u662f\u5207\u7247\u4e2d\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u6240\u5bf9\u5e94\u7684\u5e95\u5c42\u6570\u7ec4\u5143\u7d20\u7684\u5730\u5740\u3002\n\u8981\u6ce8\u610f\u7684\u662f\uff1a\u5207\u7247\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u5e76\u4e0d\u4e00\u5b9a\u5c31\u662f\u6570\u7ec4\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\n\n\/\/2\u3001\u957f\u5ea6\u5c31\u662f\u5207\u7247\u4e2d\u5305\u542b\u7684\u5143\u7d20\u7684\u4e2a\u6570\n\u8981\u6ce8\u610f\u7684\u662f\uff1a\u957f\u5ea6\u4e0d\u80fd\u8d85\u8fc7\u5207\u7247\u7684\u5bb9\u91cf\n\n\/\/3\u3001\u957f\u5ea6\u6307\u7684\u662f\u5207\u7247\u5f53\u524d\u5bb9\u7eb3\u7684\u5143\u7d20\u7684\u4e2a\u6570\uff0c\u800c\u5207\u7247\u7684\u957f\u5ea6\u662f\u53ef\u4ee5\u53d8\u5316\u7684\uff0c\u5bb9\u91cf\u6307\u7684\u5219\u662f\u5207\u7247\u672a\u6765\u53ef\u4ee5\u5bb9\u7eb3\u7684\u5143\u7d20\u7684\u4e2a\u6570\uff0c\u5373\u672a\u6765\u53ef\u4ee5\u957f\u5ea6\u53ef\u4ee5\u8fbe\u5230\u7684\u8303\u56f4\n\u8981\u6ce8\u610f\u7684\u662f\uff1a\n    1\u3001\u968f\u7740\u5f80\u5207\u7247\u4e2dappend\u5143\u7d20\uff0c\u82e5\u5e95\u5c42\u6570\u7ec4\u4e0d\u591f\u5bb9\u7eb3\uff0c\u5207\u7247\u4fbf\u4f1a\u81ea\u52a8\u6269\u5bb9(\u6307\u5411\u65b0\u7684\u6570\u7ec4)\n    2\u3001\u5728\u6ca1\u6709\u6269\u5bb9\u7684\u60c5\u51b5\u4e0b\uff1a\u5bb9\u91cf\u6307\u7684\u662f\u4ece\u5207\u7247\u7684\u5f00\u59cb\u4f4d\u7f6e\u5230\u5e95\u5c42\u6570\u7ec4\u7684\u7ed3\u5c3e\u4f4d\u7f6e\nps\uff1a\u5185\u7f6e\u7684len\u548ccap\u51fd\u6570\u5206\u522b\u8fd4\u56deslice\u7684\u957f\u5ea6\u548c\u5bb9\u91cf<\/code><\/pre>\n
    \u4e8c \u521b\u5efa\u5207\u7247<\/h2>\n
    2.1 \u5bf9\u6570\u7ec4\u8fdb\u884c\u5207\u7247\u64cd\u4f5c\u5f97\u5230\u5207\u7247\u7c7b\u578b<\/h3>\n
    \/\/ 1\u3001\u5148\u521b\u5efa\u4e00\u4e2a\u6570\u7ec4\uff0c\u6211\u4eec\u7684\u7d22\u5f15\u4ece1\u5f00\u59cb\uff0c\u7b2c0\u4e2a\u5143\u7d20\u4f1a\u88ab\u81ea\u52a8\u521d\u59cb\u5316\u4e3a\u7a7a\u5b57\u7b26\u4e32\u3002\nmonths := [...]string{1: "January", 2: "February", 3: "March", 4: "April", 5: "May", 6: "June", 7: "July", 8: "August", 9: "September", 10: "October", 11: "November", 12: "December"}\n\n\u00a0\/\/ 2\u3001\u5bf9\u6570\u7ec4months\u8fdb\u884c\u5207\u7247\u64cd\u4f5c,\u7ed3\u675f\u4f4d\u7f6e\u4e0d\u80fd\u8d85\u8fc7\u6570\u7ec4\u7684\u957f\u5ea6\nQ2 := months[4:7]\nsummer := months[6:9]\nfmt.Println(Q2)     \/\/ ["April" "May" "June"]\nfmt.Println(summer) \/\/ ["June" "July" "August"]\n\nfmt.Printf("%T\\n",Q2) \/\/ []string\nfmt.Printf("%T\\n",summer) \/\/ []string\n\nfmt.Println(Q2[1]) \/\/ \u8bbf\u95ee\u7684\u662f\u5207\u7247\u4e2d\u7684\u7b2c2\u4e2a\u5143\u7d20\uff0c\u7ed3\u679c\u4e3a\uff1aMay\nfmt.Println(summer[1]) \/\/ \u8bbf\u95ee\u7684\u662f\u5207\u7247\u4e2d\u7684\u7b2c2\u4e2a\u5143\u7d20\uff0c\u7ed3\u679c\u4e3a\uff1aJuly<\/code><\/pre>\n
    \u591a\u4e2aslice\u4e4b\u95f4\u53ef\u4ee5\u5171\u4eab\u5e95\u5c42\u7684\u6570\u636e\uff0c\u4f8b\u5982\u4e0a\u8ff0Q2\u548csummer\uff0c\u5e76\u4e14\u5f15\u7528\u7684\u6570\u7ec4\u90e8\u5206\u533a\u95f4\u53ef\u80fd\u91cd\u53e0\uff0c\u5982\u4e0b\u56fe\u6240\u793a<\/p>\n
    \"\"<\/div><\/p>\n
    \/\/ \u5207\u7247\u4e3a\u5f15\u7528\u7c7b\u578b\uff0c\u4fee\u6539\u5207\u7247\u7684\u5143\u7d20\uff0c\u80af\u5b9a\u4f1a\u5f71\u54cd\u5230\u5e95\u5c42\u6570\u636e\u53ca\u76f8\u5173\u5207\u7247\nsummer[0]="JUNE"\n\nfmt.Println(Q2) \/\/ [April May JUNE]\nfmt.Println(months) \/\/ [ ...... JUNE ......]<\/code><\/pre>\n
    2.2 \u5bf9\u5207\u7247\u8fdb\u884c\u5207\u7247\u64cd\u4f5c\u5f97\u5230\u5207\u7247\u7c7b\u578b<\/h3>\n
    \/\/1\u3001\u4ee5\u4e0a\u8ff0\u5207\u7247\u7c7b\u578bsummer\u4e3a\u4f8b\nsummer := months[6:9]\uff0c\u5b83\u7684\u957f\u5ea6\u4e3a3\uff0c\u5bb9\u91cf\u4e3a7\uff0c\u6211\u4eec\u5bf9\u5176\u7ee7\u7eed\u8fdb\u884c\u5207\u7247\u64cd\u4f5c\uff0c\u5f97\u5230\u4ecd\u7136\u662f\u4e00\u4e2a\u5207\u7247\u7c7b\u578b\n\n\/\/ 2\u3001\u5bf9\u5207\u7247\u7c7b\u578b\u518d\u6267\u884c\u5207\u7247\u64cd\u4f5c\n\/\/ 2.1 \u7ed3\u675f\u4f4d\u7f6e\u53ef\u4ee5\u8d85\u8fc7\u539f\u5207\u7247\u7684\u957f\u5ea63\uff0c\nfmt.Println(summer[:7]) \/\/ \u5f97\u5230\u4e86\u4e00\u4e2a\u66f4\u957f\u7684\u5207\u7247\uff0c\u5143\u7d20\u4e3a\uff1a[June July August September October November December]\nfmt.Printf("%T",summer[:7]) \/\/ \u7c7b\u578b\u4e3a\u5207\u7247\u7c7b\u578b\uff1a[]string\n\n\/\/ 2.2 \u4f46\u662f\u7ed3\u675f\u4f4d\u7f6e\u7edd\u5bf9\u4e0d\u80fd\u8d85\u8fc7\u539f\u5207\u7247\u7684\u5bb9\u91cf7\uff0c\u5426\u5219\u5c06\u4f1a\u5bfc\u81f4\u4e00\u4e2apanic\u5f02\u5e38\nfmt.Println(summer[:8]) \/\/ \u5f02\u5e38panic: out of range<\/code><\/pre>\n
    2.3 \u5bf9\u6307\u5411\u6570\u7ec4\u6216\u5207\u7247\u7684\u6307\u9488\u8fdb\u884c\u5207\u7247\u64cd\u4f5c\u6765\u5f97\u5230\u5207\u7247\u7c7b\u578b<\/h3>\n
    months := [...]string{1: "January", 2: "February", 3: "March", 4: "April", 5: "May", 6: "June", 7: "July", 8: "August", 9: "September", 10: "October", 11: "November", 12: "December"}\nx:=&months \/\/ x\u662f\u6307\u5411\u6570\u7ec4\u7684\u6307\u9488\n\nsummer := months[6:9]\ny:=&summer \/\/ y\u662f\u6307\u5411\u5207\u7247\u7684\u6307\u9488,\u5207\u7247\u672c\u8eab\u5c31\u662f\u5f15\u7528\u7c7b\u578b\uff0c\u53d6\u5207\u7247\u7684\u6307\u9488\u53ef\u4ee5\u7528\u6765\u4e0d\u4f9d\u8d56\u53d8\u91cfsummer\u64cd\u4f5c\u539f\u59cb\u5207\u7247\uff0c\u4f46\u5176\u5b9e\u672c\u8eab\u610f\u4e49\u5e76\u4e0d\u5927\uff0c\u4e86\u89e3\u5373\u53ef\n\nfmt.Println((*x)[0:3]) \/\/ [ January February]\nfmt.Println((*y)[0:3]) \/\/ [June July August]<\/code><\/pre>\n
    2.4 \u5bf9\u5b57\u7b26\u4e32\u8fdb\u884c\u5207\u7247\u64cd\u4f5c\u5f97\u5230\u5b50\u5b57\u7b26\u4e32<\/h3>\n
    \u5b57\u7b26\u4e32\u7684\u5207\u7247\u64cd\u4f5c\u548c[]byte\u5b57\u8282\u7c7b\u578b\u5207\u7247\u7684\u5207\u7247\u64cd\u4f5c\u662f\u7c7b\u4f3c\u7684\u3002\u5b83\u4eec\u90fd\u5199\u4f5cx[m:n]\uff0c\u5e76\u4e14\u90fd\u662f\u8fd4\u56de\u4e00\u4e2a\u539f\u59cb\u5b57\u8282\u5e8f\u5217\u7684\u5b50\u5e8f\u5217\uff0c\u5e95\u5c42\u90fd\u662f\u5171\u4eab\u4e4b\u524d\u7684\u5e95\u5c42\u6570\u7ec4\uff0c\u56e0\u6b64\u5207\u7247\u64cd\u4f5c\u5bf9\u5e94\u5e38\u91cf\u65f6\u95f4\u590d\u6742\u5ea6\u3002x[m:n]\u5207\u7247\u64cd\u4f5c\u5bf9\u4e8e\u5b57\u7b26\u4e32\u5219\u751f\u6210\u4e00\u4e2a\u65b0\u5b57\u7b26\u4e32\uff0c\u5982\u679cx\u662f[]byte\u7684\u8bdd\u5219\u751f\u6210\u4e00\u4e2a\u65b0\u7684[]byte\u3002<\/p>\n
    msg := "hi\u5403\u9e21\u5417"\n\n\/\/ \u5bf9\u5b57\u7b26\u4e32\u5207\u7247\u5f97\u5230\u5b50\u5b57\u7b26\u4e32,\u7ed3\u675f\u4f4d\u7f6e\u4e0d\u80fd\u8d85\u8fc7\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\nres:=msg[0:5] \/\/ \u540c\u6837\u662f\u4ee5\u5b57\u8282\u5355\u4f4d\nfmt.Println(res) \/\/ hi\u5403\nfmt.Printf("%T\\n",res) \/\/ string\n\n\/\/ \u628a\u5b57\u7b26\u4e32\u5e95\u5c42\u7684byte\u5b58\u5165\u5207\u7247\uff1a[]byte\nx:=[]byte(msg) \/\/ [104 105 229 144 131 233 184 161 229 144 151]\n\nx[8]='\\xe5' \/\/ \u66ff\u6362\u4e3a\u4e2d\u6587\u5b57\u7b26"\u5427"\u7684\u7b2c1\u4e2autf-8\u7801\u70b9\nx[9]='\\x90' \/\/ \u66ff\u6362\u4e3a\u4e2d\u6587\u5b57\u7b26"\u5427"\u7684\u7b2c2\u4e2autf-8\u7801\u70b9\nx[10]='\\xa7' \/\/ \u66ff\u6362\u4e3a\u4e2d\u6587\u5b57\u7b26"\u5427"\u7684\u7b2c3\u4e2autf-8\u7801\u70b9\nfmt.Println(x) \/\/ [104 105 229 144 131 233 184 161 229 144 167]\nfmt.Println(string(x)) \/\/ hi\u5403\u9e21\u5427\n\n\/\/ \u628a\u5b57\u7b26\u4e32\u5e95\u5c42\u7684byte\u8f6c\u6210unicode\u7801\u70b9\u5b58\u5165\u5207\u7247\uff1a[]rune\ny:=[]rune(msg) \/\/ [104 105 20320 22909 101 103 111 110]\n\ny[4]='\u5427'\ny[3]='\\u5427'\nfmt.Println(y)         \/\/ [104 105 21507 21543 21543]\nfmt.Printf("%q\\n", q)  \/\/ ['h' 'i' '\u5403' '\u5427' '\u5427']\nfmt.Println(string(y)) \/\/ hi\u5403\u5427\u5427\n\nvar runes []rune\nfor _, r := range "Hello, \u4e16\u754c" {\n    runes = append(runes, r)\n}\nfmt.Println(runes)         \/\/ [72 101 108 108 111 44 32 19990 30028]\nfmt.Printf("%q\\n", runes) \/\/ "['H' 'e' 'l' 'l' 'o' ',' ' ' '\u4e16' '\u754c']"<\/code><\/pre>\n
    2.5 make\u521b\u5efa\u5207\u7247\u7c7b\u578b\uff0c\u6307\u5411\u4e00\u4e2a\u9690\u5f0f\u7684\u5e95\u5c42\u6570\u7ec4<\/h3>\n
    \u200b   \u6211\u4eec\u53ef\u4ee5\u76f4\u63a5\u58f0\u660e\u4e00\u4e2a\u5207\u7247\u7c7b\u578b\uff0c\u4f46\u662f\u5b83\u7684\u96f6\u503c\u4e3anil\uff0c\u4e00\u4e2a\u96f6\u503c\u7684\u5207\u7247\u7b49\u4e8enil\uff0cnil\u4ee3\u8868\u7a7a\u3001\u6ca1\u6709\u5206\u914d\u5185\u5b58\uff0c\u6240\u4ee5\u8bf4\u4e00\u4e2anil\u503c\u7684\u5207\u7247\u5e76\u6ca1\u6709\u5e95\u5c42\u6570\u7ec4<\/p>\n
    var s []int\nfmt.Println(s == nil) \/\/ true<\/code><\/pre>\n
    \u200b   \u4e3a\u4e86\u9632\u6b62\u8fd0\u884c\u65f6\u7533\u8bf7\u5185\u5b58\u5e26\u6765\u7684\u6548\u7387\u95ee\u9898\uff0c\u6211\u4eec\u53ef\u4ee5\u7528make\u51fd\u6570\u4e3a\u5207\u7247\u4e8b\u5148\u7533\u8bf7\u597d\u4e86\u5185\u5b58\u7a7a\u95f4\uff0c\u5185\u7f6e\u7684make\u51fd\u6570\u521b\u5efa\u4e00\u4e2a\u6307\u5b9a\u5143\u7d20\u7c7b\u578b<\/code>\u3001\u957f\u5ea6<\/code>\u548c\u5bb9\u91cf<\/code>\u7684slice\u3002\u5bb9\u91cf\u90e8\u5206\u53ef\u4ee5\u7701\u7565\uff0c\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5bb9\u91cf\u5c06\u7b49\u4e8e\u957f\u5ea6<\/p>\n
    make([]T, len)\nmake([]T, len, cap) \/\/ \u7b49\u540c\u4e8e make([]T, cap)[:len]<\/code><\/pre>\n
    \u200b   \u5728\u5e95\u5c42\uff0cmake\u521b\u5efa\u4e86\u4e00\u4e2a\u533f\u540d\u7684\u6570\u7ec4\u53d8\u91cf\uff0c\u7136\u540e\u8fd4\u56de\u4e00\u4e2aslice\uff1b\u53ea\u6709\u901a\u8fc7\u8fd4\u56de\u7684slice\u624d\u80fd\u5f15\u7528\u5e95\u5c42\u533f\u540d\u7684\u6570\u7ec4\u53d8\u91cf<\/p>\n
    \u5728\u7b2c\u4e00\u79cd\u8bed\u53e5\u4e2d\uff0c\u521b\u5efa\u4e86\u4e00\u4e2a\u5143\u7d20\u4e2a\u6570\u4e3alen\u4e2a\u7684\u5e95\u5c42\u6570\u7ec4\uff0c\u7136\u540e\u5f97\u5230\u7684\u5207\u7247\u7c7b\u578b\u5f15\u7528\u4e86\u6574\u4e2a\u6570\u7ec4\uff0c\u5207\u7247\u7684\u957f\u5ea6\u7b49\u4e8e\u5207\u7247\u7684\u5bb9\u91cf\uff0c\u8fd9\u662f\u5207\u7247\u64cd\u4f5c\u80fd\u8fbe\u5230\u7684\u6700\u5927\u957f\u5ea6\u4e86<\/p>\n
    \u5728\u7b2c\u4e8c\u4e2a\u8bed\u53e5\u4e2d\uff0c\u521b\u5efa\u4e86\u4e00\u4e2a\u5143\u7d20\u4e2a\u6570\u4e3acap\u4e2a\u7684\u5e95\u5c42\u6570\u7ec4\uff0c\u7136\u540e\u53ea\u5f15\u7528\u4e86\u5e95\u5c42\u6570\u7ec4\u7684\u524dlen\u4e2a\u5143\u7d20\uff0c\u82e5len<cap\uff0c\u90a3\u989d\u5916\u7684\u5143\u7d20\u5c31\u662f\u7559\u7ed9\u672a\u6765\u7684\u589e\u957f\u7528\u7684\u3002<\/p>\n
    s:=make([]T, 0, 4) \nfmt.Println(s == nil) \/\/ false<\/code><\/pre>\n
    2.6 \u58f0\u660e\u5e76\u521d\u59cb\u5316\u5207\u7247\uff0c\u6307\u5411\u4e00\u4e2a\u9690\u5f0f\u7684\u5e95\u5c42\u6570\u7ec4<\/h3>\n
    \u200b   slice\u548c\u6570\u7ec4\u7684\u5b57\u9762\u503c\u8bed\u6cd5\u5f88\u7c7b\u4f3c\uff0c\u5b83\u4eec\u90fd\u662f\u7528\u82b1\u62ec\u5f27\u5305\u542b\u4e00\u7cfb\u5217\u7684\u521d\u59cb\u5316\u5143\u7d20\u3002<\/p>\n
    s1 := [5]int{1, 2, 3, 4, 5}\nfmt.Printf("%T\\n",s1) \/\/ \u6570\u7ec4\u7c7b\u578b[5]int\n\ns2 := []int{1, 2, 3, 4, 5}\nfmt.Printf("%T\\n",s2) \/\/ \u5207\u7247\u7c7b\u578b[]int<\/code><\/pre>\n
    \u4f46\u662f\u5bf9\u4e8eslice\u5e76\u6ca1\u6709\u6307\u660e\u5e8f\u5217\u7684\u957f\u5ea6\uff0c\u8fd9\u4f1a\u9690\u5f0f\u5730\u521b\u5efa\u4e00\u4e2a\u5408\u9002\u5927\u5c0f\u7684\u6570\u7ec4\uff0c\u7136\u540eslice\u7684\u6307\u9488\u6307\u5411\u5e95\u5c42\u7684\u6570\u7ec4\u3002<\/p>\n
    \u200b   \u50cf\u6570\u7ec4\u5b57\u9762\u503c\u4e00\u6837\uff0cslice\u7684\u5b57\u9762\u503c\u53ef\u4ee5\u6309\u987a\u5e8f\u6307\u5b9a\u521d\u59cb\u5316\u503c\u5e8f\u5217\u5982\u4e0a\u6240\u793a<\/p>\n
    \u200b   \u4e5f\u53ef\u4ee5\u901a\u8fc7\u7d22\u5f15\u548c\u5143\u7d20\u503c\u6307\u5b9a\uff0c\u6216\u8005\u7684\u4e24\u79cd\u98ce\u683c\u7684\u6df7\u5408\u8bed\u6cd5\u521d\u59cb\u5316\uff0c\u5982\u4e0b\u6240\u793a<\/p>\n
    s1 := []string{"aaa", "bbb",3:"ddd",}\nfmt.Println(s1) \/\/ [aaa bbb  ddd]\nfmt.Println(s1[0]) \/\/ aaa\nfmt.Println(s1[1]) \/\/ bbb\nfmt.Println(s1[2]) \/\/ \u7a7a\nfmt.Println(s1[3]) \/\/ ddd<\/code><\/pre>\n
    \u4e09 \u5207\u7247\u4e0d\u80fd\u76f4\u63a5\u8fdb\u884c\u76f8\u7b49\u6027\u6bd4\u8f83<\/h2>\n
    \u5207\u7247\u4e0e\u6570\u7ec4\u8fd8\u6709\u4e00\u70b9\u4e0d\u540c\u7684\u5c31\u662f\uff0cslice\u5f7c\u6b64\u4e4b\u95f4\u4e0d\u80fd\u6bd4\u8f83\uff0c\u56e0\u4e3a\u5207\u7247\u662f\u5f15\u7528\u7c7b\u578b\uff0c\u5b83\u6240\u5305\u542b\u7684\u771f\u5b9e\u503c\u90fd\u6765\u81ea\u4e8e\u6216\u8005\u8bf4\u95f4\u63a5\u5f15\u7528\u4e8e\u5e95\u5c42\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\uff0c\u800c\u6211\u4eec\u60f3\u6bd4\u8f83\u7684\u90fd\u662f\u503c\u800c\u4e0d\u662f\u5f15\u7528\uff0c\u6bd4\u8f83\u5f15\u7528\u4e5f\u6ca1\u6709\u610f\u4e49\uff0c\u56e0\u4e3a\u5e95\u5c42\u6570\u7ec4\u7684\u5143\u7d20\u662f\u53ef\u4ee5\u968f\u65f6\u88ab\u4fee\u6539\u7684\uff0c<\/p>\n
    \u5f53\u7136\uff0c\u6211\u4eec\u81ea\u5df1\u53d6\u51fa\u5207\u7247\u4e2d\u7684\u5143\u7d20\u9010\u4e00\u8fdb\u884c\u6bd4\u8f83\u662f\u53ef\u4ee5\u7684\uff0c\u5982\u4e0b\u6240\u793a<\/p>\n
    func equal(x, y []string) bool {\n    if len(x) != len(y) {\n        return false \/\/ \u4e24\u4e2a\u5207\u7247\u7c7b\u578b\u7684\u957f\u5ea6\u4e0d\u4e00\u6837\u76f4\u63a5\u8fd4\u56defalse\uff0c\u4ee3\u8868\u4e0d\u76f8\u7b49\n    }\n    for i := range x {\n        if x[i] != y[i] {\n            return false \/\/ \u4e24\u4e2a\u5207\u7247\u7c7b\u578b\u4f46\u51e1\u6709\u4e00\u7ec4\u5bf9\u5e94\u503c\u4e0d\u76f8\u7b49\u5c31\u8fd4\u56defalse\uff0c\u4ee3\u8868\u4e0d\u76f8\u7b49\n        }\n    }\n    return true \/\/ \u5982\u679c\u80fd\u591f\u6267\u884c\u8be5\u884c\u4ee3\u7801\uff0c\u8fd4\u56detrue\uff0c\u5219\u4ee3\u8868\u4e24\u4e2a\u5207\u7247\u662f\u76f8\u7b49\u7684\uff0c\u5373\u5e95\u5c42\u5143\u7d20\u4e00\u6837\n}<\/code><\/pre>\n
    \u56e0\u4e3a\u6211\u4eec\u53ef\u4ee5\u58f0\u660e\u4e00\u4e2a\u5207\u7247\u7c7b\u578b\uff0c\u5b83\u7684\u96f6\u503c\u4e3anil\uff0c\u5982\u4e0b\u6240\u793a<\/p>\n
    \/\/1\u3001\u4e00\u4e2anil\u503c\u7684slice\u7684\u957f\u5ea6\u548c\u5bb9\u91cf\u90fd\u662f0\uff0c\u5982\u4e0b\u6240\u793a\nvar s []int    \/\/ len(s) == 0, s == nil\ns = nil        \/\/ len(s) == 0, s == nil\ns = []int(nil) \/\/ len(s) == 0, s == nil \/\/ \u57fa\u4e8e\u7c7b\u578b\u8f6c\u6362\u8868\u8fbe\u5f0f[]int(nil)\u751f\u4e00\u4e2a\u503c\u4e3anil\u7684\u5207\u7247\n\n\/\/2\u3001\u5f53\u7136\u4e5f\u6709\u975enil\u503c\u7684\u5207\u7247\u7684\u957f\u5ea6\u548c\u5bb9\u91cf\u4e5f\u662f0\uff0c\u4f8b\u5982[]int{}\u6216make([]int, 3)[3:]\ns = []int{}    \/\/ len(s) == 0, s != nil\ns = make([]int, 3)[3:] \/\/ \u540c\u4e0a<\/code><\/pre>\n
    \u6240\u4ee5\u8bf4\u4e8b\u5b9e\u4e0a\u5207\u7247slice\u552f\u4e00\u5408\u6cd5\u7684\u6bd4\u8f83\u64cd\u4f5c\u5c31\u662f\u548cnil\u6bd4\u8f83\uff0c\u4f8b\u5982\uff1a<\/p>\n
    if summer == nil { \/* ... *\/ }<\/code><\/pre>\n
    \u7efc\u4e0a\uff1a\u5982\u679c\u4f60\u9700\u8981\u6d4b\u8bd5\u4e00\u4e2aslice\u662f\u5426\u662f\u7a7a\u7684\uff0c\u4f7f\u7528len(s) == 0\u6765\u5224\u65ad\uff0c\u800c\u4e0d\u5e94\u8be5\u7528s == nil\u6765\u5224\u65ad\u3002<\/p>\n
    \u9664\u4e86\u548cnil\u76f8\u7b49\u6bd4\u8f83\u5916\uff0c\u4e00\u4e2anil\u503c\u7684slice\u7684\u884c\u4e3a\u548c\u5176\u5b83\u4efb\u610f0\u4ea7\u957f\u5ea6\u7684slice\u4e00\u6837\uff1b\u4f8b\u5982reverse(nil)\u4e5f\u662f\u5b89\u5168\u7684\u3002\u9664\u4e86\u6587\u6863\u5df2\u7ecf\u660e\u786e\u8bf4\u660e\u7684\u5730\u65b9\uff0c\u6240\u6709\u7684Go\u8bed\u8a00\u51fd\u6570\u5e94\u8be5\u4ee5\u76f8\u540c\u7684\u65b9\u5f0f\u5bf9\u5f85nil\u503c\u7684slice\u548c0\u957f\u5ea6\u7684slice\u3002<\/p>\n
    \u56db \u4f20\u9012\u5207\u7247\u4fee\u6539\u5173\u8054\u6570\u7ec4<\/h2>\n
    \u200b   \u56e0\u4e3a\u6570\u7ec4\u662f\u503c\u7c7b\u578b\uff0c\u4f20\u5165\u51fd\u6570\u540e\uff0c\u662f\u4e00\u4e2a\u65b0\u7684\u526f\u672c\uff0c\u5728\u51fd\u6570\u5185\u4fee\u6539\u5e76\u4e0d\u4f1a\u5f71\u54cd\u539f\u6570\u7ec4\uff0c\u82e5\u60f3\u4fee\u6539\uff0c\u90a3\u4e48\u5fc5\u987b\u4f20\u9012\u6570\u7ec4\u7684\u5f15\u7528\uff0c\u6211\u4eec\u53ef\u4ee5\u4f20\u9012\u6570\u7ec4\u6307\u9488<\/p>
    <\/div>
    \u67e5\u770b\u66f4\u591a<\/h2>
    \u8054\u7cfb\u7ba1\u7406\u5458\u5fae\u4fe1tutu19192010\uff0c\u6ce8\u518c\u8d26\u53f7<\/p>\n<\/div>
    <\/div>
    <\/td><\/tr>
    <\/td><\/tr><\/tbody><\/table>
    		<\/td><\/tr><\/tbody><\/table><\/form>
    Register<\/a><\/div>
    Forgotten username or password?<\/a><\/div>
    <\/div><\/div><\/div>
    <\/div>","protected":false},"excerpt":{"rendered":"
    \u5207\u7247Slice \u4e00 \u5207\u7247\u4ecb\u7ecd \u200b \u5207\u7247\uff08Slice\uff09\u987e\u540d\u601d\u4e49\u5c31\u662f\u201c\u628a\u4e1c\u897f\u62ff\u8fc7\u6765\u5207\u4e00\u5200\uff0c\u5f97\u5230\u4e00\u7247\uff0c\u54c8\u54c8\u54c8\uff0c\u8bdd\u7cd9\u7406 […]<\/p>\n","protected":false},"author":3,"featured_media":2565,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[260,261,263,262],"_links":{"self":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/1914"}],"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=1914"}],"version-history":[{"count":0,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/1914\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/media\/2565"}],"wp:attachment":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1914"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1914"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1914"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}