{"id":24,"date":"2023-02-19T13:17:48","date_gmt":"2023-02-19T05:17:48","guid":{"rendered":"https:\/\/m.anymoons.top\/?p=24"},"modified":"2023-03-15T18:21:54","modified_gmt":"2023-03-15T10:21:54","slug":"c%e8%af%ad%e8%a8%80%e4%b8%adfile%e6%96%87%e4%bb%b6%e6%93%8d%e4%bd%9c%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/blog.itsmygo.cn\/?p=24","title":{"rendered":"C\u8bed\u8a00\u4e2dFILE\u6587\u4ef6\u64cd\u4f5c\u8be6\u89e3"},"content":{"rendered":"<h1>\u57fa\u7840\u6982\u5ff5<\/h1>\n<h2><b>\u6570\u636e\u6d41<\/b><\/h2>\n<p>\u7a0b\u5e8f\u4e0e\u6570\u636e\u7684\u4ea4\u4e92\u662f\u4ee5\u6d41\u7684\u5f62\u5f0f\u8fdb\u884c\u7684\u3002\u8fdb\u884cC\u8bed\u8a00\u6587\u4ef6\u7684\u5b58\u53d6\u65f6\uff0c\u90fd\u4f1a\u5148\u8fdb\u884c\u201c\u6253\u5f00\u6587\u4ef6\u201d\u64cd\u4f5c\uff0c\u8fd9\u4e2a\u64cd\u4f5c\u5c31\u662f\u5728\u6253\u5f00\u6570\u636e\u6d41\uff0c\u800c\u201c\u5173\u95ed\u6587\u4ef6\u201d\u64cd\u4f5c\u5c31\u662f\u5173\u95ed\u6570\u636e\u6d41\u3002<\/p>\n<h2 style=\"text-align: left;\">\u7f13\u51b2\u533a<\/h2>\n<p>\u5728\u7a0b\u5e8f\u6267\u884c\u65f6\uff0c\u6240\u63d0\u4f9b\u7684\u989d\u5916\u5185\u5b58\uff0c\u53ef\u7528\u6765\u6682\u65f6\u5b58\u653e\u505a\u51c6\u5907\u6267\u884c\u7684\u6570\u636e\u3002\u5b83\u7684\u8bbe\u7f6e\u662f\u4e3a\u4e86\u63d0\u9ad8\u5b58\u53d6\u6548\u7387\uff0c\u56e0\u4e3a\u5185\u5b58\u7684\u5b58\u53d6\u901f\u5ea6\u6bd4\u78c1\u76d8\u9a71\u52a8\u5668\u5feb\u5f97\u591a\u3002<\/p>\n<div  class='collapse-block shadow-sm collapse-block-transparent collapsed hide-border-left'><div class='collapse-block-title'><span class='collapse-block-title-inner'>C\u8bed\u8a00\u81ea\u5e26\u7f13\u51b2\u533a\u5904\u7406<\/span><i class='collapse-icon fa fa-angle-down'><\/i><\/div><div class='collapse-block-body' style='display:none;'><\/p>\n<p>C\u8bed\u8a00\u7684\u6587\u4ef6\u5904\u7406\u529f\u80fd\u4f9d\u636e\u7cfb\u7edf\u662f\u5426\u8bbe\u7f6e\u201c\u7f13\u51b2\u533a\u201d\u5206\u4e3a\u4e24\u79cd\uff1a\u4e00\u79cd\u662f\u8bbe\u7f6e\u7f13\u51b2\u533a\uff0c\u53e6\u4e00\u79cd\u662f\u4e0d\u8bbe\u7f6e\u7f13\u51b2\u533a\u3002\u7531\u4e8e\u4e0d\u8bbe\u7f6e\u7f13\u51b2\u533a\u7684\u6587\u4ef6\u5904\u7406\u65b9\u5f0f\uff0c\u5fc5\u987b\u4f7f\u7528\u8f83\u4f4e\u7ea7\u7684I\/O\u51fd\u6570(\u5305\u542b\u5728\u5934\u6587\u4ef6io.h\u548cfcntl.h\u4e2d)\u6765\u76f4\u63a5\u5bf9\u78c1\u76d8\u5b58\u53d6\uff0c\u8fd9\u79cd\u65b9\u5f0f\u7684\u5b58\u53d6\u901f\u5ea6\u6162\uff0c\u5e76\u4e14\u7531\u4e8e\u4e0d\u662fC\u7684\u6807\u51c6\u51fd\u6570\uff0c\u8de8\u5e73\u53f0\u64cd\u4f5c\u65f6\u5bb9\u6613\u51fa\u95ee\u9898\u3002\u4e0b\u9762\u53ea\u4ecb\u7ecd\u7b2c\u4e00\u79cd\u5904\u7406\u65b9\u5f0f\uff0c\u5373\u8bbe\u7f6e\u7f13\u51b2\u533a\u7684\u6587\u4ef6\u5904\u7406\u65b9\u5f0f\uff1a\u5f53\u4f7f\u7528\u6807\u51c6I\/O\u51fd\u6570(\u5305\u542b\u5728\u5934\u6587\u4ef6stdio.h\u4e2d)\u65f6\uff0c\u7cfb\u7edf\u4f1a\u81ea\u52a8\u8bbe\u7f6e\u7f13\u51b2\u533a\uff0c\u5e76\u901a\u8fc7\u6570\u636e\u6d41\u6765\u8bfb\u5199\u6587\u4ef6\u3002\u5f53\u8fdb\u884c\u6587\u4ef6\u8bfb\u53d6\u65f6\uff0c\u4e0d\u4f1a\u76f4\u63a5\u5bf9\u78c1\u76d8\u8fdb\u884c\u8bfb\u53d6\uff0c\u800c\u662f\u5148\u6253\u5f00\u6570\u636e\u6d41\uff0c\u5c06\u78c1\u76d8\u4e0a\u7684\u6587\u4ef6\u4fe1\u606f\u62f7\u8d1d\u5230\u7f13\u51b2\u533a\u5185\uff0c\u7136\u540e\u7a0b\u5e8f\u518d\u4ece\u7f13\u51b2\u533a\u4e2d\u8bfb\u53d6\u6240\u9700\u6570\u636e\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff1a<div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/pic3.zhimg.com\/v2-7baf881f8a8fb8967b2df31f44f60a12_b.webp'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" class=\"aligncenter\" data-original=\"https:\/\/pic3.zhimg.com\/v2-7baf881f8a8fb8967b2df31f44f60a12_b.webp\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\u52a8\u56fe\" \/><\/div><\/p>\n<p>\u4e8b\u5b9e\u4e0a\uff0c\u5f53\u5199\u5165\u6587\u4ef6\u65f6\uff0c\u5e76\u4e0d\u4f1a\u9a6c\u4e0a\u5199\u5165\u78c1\u76d8\u4e2d\uff0c\u800c\u662f\u5148\u5199\u5165\u7f13\u51b2\u533a\uff0c\u53ea\u6709\u5728\u7f13\u51b2\u533a\u5df2\u6ee1\u6216\u201c\u5173\u95ed\u6587\u4ef6\u201d\u65f6\uff0c\u624d\u4f1a\u5c06\u6570\u636e\u5199\u5165\u78c1\u76d8\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/pic4.zhimg.com\/v2-e6295496ef64a00212bfee5d73b70317_b.webp'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" class=\"aligncenter\" data-original=\"https:\/\/pic4.zhimg.com\/v2-e6295496ef64a00212bfee5d73b70317_b.webp\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\u52a8\u56fe\" \/><\/div><\/p>\n<p><\/div><\/div>\n<h2 style=\"text-align: left;\">\u6587\u4ef6\u7c7b\u578b<\/h2>\n<p>\u5206\u4e3a<span class='badge badge-primary'>\u6587\u672c\u6587\u4ef6<\/span>\u548c<span class='badge badge-primary'>\u4e8c\u8fdb\u5236\u6587\u4ef6<\/span>\u4e24\u79cd\u3002<br \/>\n\u6587\u672c\u6587\u4ef6\u662f\u4ee5\u5b57\u7b26\u7f16\u7801\u7684\u65b9\u5f0f\u8fdb\u884c\u4fdd\u5b58\u7684\u3002<br \/>\n\u4e8c\u8fdb\u5236\u6587\u4ef6\u5c06\u5185\u5b58\u4e2d\u6570\u636e\u539f\u5c01\u4e0d\u81f3\u6587\u4ef6\u4e2d\uff0c\u9002\u7528\u4e8e\u975e\u5b57\u7b26\u4e3a\u4e3b\u7684\u6570\u636e\u3002\u5982\u679c\u4ee5\u8bb0\u4e8b\u672c\u6253\u5f00\uff0c\u53ea\u4f1a\u770b\u5230\u4e00\u5806\u4e71\u7801\u3002<br \/>\n\u5176\u5b9e\uff0c\u9664\u4e86\u6587\u672c\u6587\u4ef6\u5916\uff0c\u6240\u6709\u7684\u6570\u636e\u90fd\u53ef\u4ee5\u7b97\u662f\u4e8c\u8fdb\u5236\u6587\u4ef6\u3002\u4e8c\u8fdb\u5236\u6587\u4ef6\u7684\u4f18\u70b9\u5728\u4e8e\u5b58\u53d6\u901f\u5ea6\u5feb\uff0c\u5360\u7528\u7a7a\u95f4\u5c0f\uff0c\u4ee5\u53ca\u53ef\u968f\u673a\u5b58\u53d6\u6570\u636e\u3002<\/p>\n<h2 style=\"text-align: left;\"><b>\u6587\u4ef6\u5b58\u53d6\u65b9\u5f0f<\/b><\/h2>\n<p>\u5305\u62ec<span class='badge badge-primary'>\u987a\u5e8f\u5b58\u53d6\u65b9\u5f0f<\/span>\u548c<span class='badge badge-primary'>\u968f\u673a\u5b58\u53d6\u65b9\u5f0f<\/span>\u4e24\u79cd\u3002<br \/>\n\u987a\u5e8f\u8bfb\u53d6\u4e5f\u5c31\u662f\u4ece\u4e0a\u5f80\u4e0b\uff0c\u4e00\u7b14\u4e00\u7b14\u8bfb\u53d6\u6587\u4ef6\u7684\u5185\u5bb9\u3002\u4fdd\u5b58\u6570\u636e\u65f6\uff0c\u5c06\u6570\u636e\u9644\u52a0\u5728\u6587\u4ef6\u7684\u672b\u5c3e\u3002\u8fd9\u79cd\u5b58\u53d6\u65b9\u5f0f\u5e38\u7528\u4e8e\u6587\u672c\u6587\u4ef6\uff0c\u800c\u88ab\u5b58\u53d6\u7684\u6587\u4ef6\u5219\u79f0\u4e3a\u987a\u5e8f\u6587\u4ef6\u3002<br \/>\n\u968f\u673a\u5b58\u53d6\u65b9\u5f0f\u591a\u534a\u4ee5\u4e8c\u8fdb\u5236\u6587\u4ef6\u4e3a\u4e3b\u3002\u5b83\u4f1a\u4ee5\u4e00\u4e2a\u5b8c\u6574\u7684\u5355\u4f4d\u6765\u8fdb\u884c\u6570\u636e\u7684\u8bfb\u53d6\u548c\u5199\u5165\uff0c\u901a\u5e38\u4ee5\u7ed3\u6784\u4e3a\u5355\u4f4d\u3002<\/p>\n<h2>\u6587\u4ef6\u64cd\u4f5c\u65b9\u5f0f<\/h2>\n<p>C\u8bed\u8a00\u4e2d\u4e3b\u8981\u901a\u8fc7\u6807\u51c6I\/O\u51fd\u6570\u6765\u5bf9\u6587\u672c\u6587\u4ef6\u8fdb\u884c\u5904\u7406\u3002\u76f8\u5173\u7684\u64cd\u4f5c\u5305\u62ec\u6253\u5f00\u3001\u8bfb\u5199\u3001\u5173\u95ed\u4e0e\u8bbe\u7f6e\u7f13\u51b2\u533a\u3002<br \/>\n\u76f8\u5173\u7684\u5b58\u53d6\u51fd\u6570\u6709\uff1a<\/p>\n<pre class=\"code\">fopen(), fclose(), fgetc(), fputc(), fgets(), fputs(), fprintf(), fscanf()\u7b49<\/pre>\n<h3>\u6253\u5f00\u6587\u4ef6<\/h3>\n<p>\u51fd\u6570\u539f\u578b\u4e3a\uff1a<\/p>\n<pre class=\"code\">_CRTIMP FILE * __cdecl fopen(const char *, const char *);<\/pre>\n<p>\u7b2c\u4e00\u53c2\u6570\u4e3a\u6587\u4ef6\u540d\uff0c\u7b2c\u4e8c\u4e2a\u53c2\u6570\u4e3a\u6253\u5f00\u6a21\u5f0f\u3002<\/p>\n<p>&nbsp;<\/p>\n<div  class='collapse-block shadow-sm collapse-block-transparent collapsed hide-border-left'><div class='collapse-block-title'><span class='collapse-block-title-inner'>\u6253\u5f00\u6a21\u5f0f<\/span><i class='collapse-icon fa fa-angle-down'><\/i><\/div><div class='collapse-block-body' style='display:none;'><\/p>\n<p>&#8220;r&#8221;\uff1a\u53ea\u80fd\u4ece\u6587\u4ef6\u4e2d\u8bfb\u6570\u636e\uff0c\u8be5\u6587\u4ef6\u5fc5\u987b\u5148\u5b58\u5728\uff0c\u5426\u5219\u6253\u5f00\u5931\u8d25<br \/>\n&#8220;w&#8221;\uff1a\u53ea\u80fd\u5411\u6587\u4ef6\u5199\u6570\u636e\uff0c\u82e5\u6307\u5b9a\u7684\u6587\u4ef6\u4e0d\u5b58\u5728\u5219\u521b\u5efa\u5b83\uff0c\u5982\u679c\u5b58\u5728\u5219\u5148\u5220\u9664\u5b83\u518d\u91cd\u5efa\u4e00\u4e2a\u65b0\u6587\u4ef6<br \/>\n&#8220;a&#8221;\uff1a\u5411\u6587\u4ef6\u589e\u52a0\u65b0\u6570\u636e(\u4e0d\u5220\u9664\u539f\u6709\u6570\u636e)\uff0c\u82e5\u6307\u5b9a\u7684\u6587\u4ef6\u4e0d\u5b58\u5728\u5219\u521b\u5efa\u5b83\uff0c\u6253\u5f00\u65f6\u4f4d\u7f6e\u6307\u9488\u79fb\u5230\u6587\u4ef6\u672b\u5c3e<br \/>\n&#8220;r+&#8221;\uff1a\u53ef\u8bfb\/\u5199\u6570\u636e\uff0c\u8be5\u6587\u4ef6\u5fc5\u987b\u5148\u5b58\u5728\uff0c\u5426\u5219\u6253\u5f00\u5931\u8d25<br \/>\n&#8220;w+&#8221;\uff1a\u53ef\u8bfb\/\u5199\u6570\u636e\uff0c\u7528\u8be5\u6a21\u5f0f\u6253\u5f00\u65b0\u5efa\u4e00\u4e2a\u6587\u4ef6\uff0c\u5148\u5411\u8be5\u6587\u4ef6\u5199\u6570\u636e\uff0c\u7136\u540e\u53ef\u8bfb\u53d6\u8be5\u6587\u4ef6\u4e2d\u7684\u6570\u636e<br \/>\n&#8220;a+&#8221;\uff1a\u53ef\u8bfb\/\u5199\u6570\u636e\uff0c\u539f\u6765\u7684\u6587\u4ef6\u4e0d\u88ab\u5220\u53bb\uff0c\u4f4d\u7f6e\u6307\u9488\u79fb\u5230\u6587\u4ef6\u672b\u5c3e<\/p>\n<p>\u6253\u5f00\u4e8c\u8fdb\u5236\u6587\u4ef6\u7684\u6a21\u5f0f\u4e0e\u6253\u5f00\u6587\u672c\u6587\u4ef6\u7684\u542b\u4e49\u662f\u4e00\u6837\u7684\uff0c\u4e0d\u540c\u7684\u662f\u6a21\u5f0f\u540d\u79f0\u91cc\u9762\u591a\u4e00\u4e2a\u5b57\u6bcd&#8217;b\u2019\uff0c\u4ee5\u8868\u793a\u4ee5\u4e8c\u8fdb\u5236\u5f62\u5f0f\u6253\u5f00\u6587\u4ef6\u3002<\/p>\n<p><\/div><\/div>\n<p>&nbsp;<\/p>\n<p>\u6253\u5f00\u6210\u529f\uff0cfopen\u8fd4\u56de\u4e00\u4e2a\u7ed3\u6784\u6307\u9488\u5730\u5740\uff0c\u5426\u5219\u8fd4\u56de\u4e00\u4e2aNULL\u3002\u5982\u679c\u6ca1\u6709\u6307\u5b9a\u6587\u4ef6\u8def\u5f84\uff0c\u5219\u9ed8\u8ba4\u4e3a\u5f53\u524d\u5de5\u4f5c\u76ee\u5f55\u3002\u5982\uff1a<\/p>\n<pre class=\"code\">FILE *fp;\nfp = fopen(\"c:\\\\temp\\\\test.txt\", \"r\") \/\/\u7531\u4e8e\u53cd\u659c\u6760\\\u662f\u63a7\u5236\u5b57\u7b26\uff0c\u6240\u4ee5\u5fc5\u987b\u518d\u52a0\u4e00\u4e2a\u53cd\u659c\u6760<\/pre>\n<p>\u4f7f\u7528fopen()\u51fd\u6570\u6253\u5f00\u7684\u6587\u4ef6\u4f1a\u5148\u5c06\u6587\u4ef6\u590d\u5236\u5230\u7f13\u51b2\u533a\u3002\u6ce8\u610f\uff1a\u6240\u4e0b\u8fbe\u7684\u8bfb\u53d6\u6216\u5199\u5165\u52a8\u4f5c\uff0c\u90fd\u662f\u9488\u5bf9\u7f13\u51b2\u533a\u8fdb\u884c\u5b58\u53d6\u800c\u4e0d\u662f\u78c1\u76d8\uff0c\u53ea\u6709\u5f53\u4f7f\u7528fclose()\u51fd\u6570\u5173\u95ed\u6587\u4ef6\u65f6\uff0c\u7f13\u51b2\u533a\u4e2d\u7684\u6570\u636e\u624d\u4f1a\u5199\u5165\u78c1\u76d8\u3002<\/p>\n<h3>\u5173\u95ed\u6587\u4ef6<\/h3>\n<p>\u51fd\u6570\u539f\u578b\u4e3a\uff1a<\/p>\n<pre class=\"code\">_CRTIMP int __cdecl fclose(FILE *);<\/pre>\n<p>\u5173\u95ed\u6210\u529f\u8fd4\u56de\u503c0\uff0c\u5426\u5219\u8fd4\u56de\u975e\u96f6\u503c\u3002<br \/>\n\u6ce8\uff1a\u5728\u6267\u884c\u5b8c\u6587\u4ef6\u7684\u64cd\u4f5c\u540e\uff0c\u8981\u8fdb\u884c\u201c\u5173\u95ed\u6587\u4ef6\u201d\u64cd\u4f5c\u3002\u867d\u7136\u7a0b\u5e8f\u5728\u7ed3\u675f\u524d\u4f1a\u81ea\u52a8\u5173\u95ed\u6240\u6709\u7684\u6253\u5f00\u6587\u4ef6\uff0c\u4f46\u6587\u4ef6\u6253\u5f00\u8fc7\u591a\u4f1a\u5bfc\u81f4\u7cfb\u7edf\u8fd0\u884c\u7f13\u6162\uff0c\u8fd9\u65f6\u5c31\u8981\u81ea\u884c\u624b\u52a8\u5173\u95ed\u4e0d\u518d\u4f7f\u7528\u7684\u6587\u4ef6\uff0c\u6765\u63d0\u9ad8\u7cfb\u7edf\u6574\u4f53\u7684\u6267\u884c\u6548\u7387\u3002<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"c\" data-enlighter-theme=\"atomic\" data-enlighter-title=\"\u8bfb\u5199\u6f14\u793a\">\/*\n\u6587\u4ef6\u8bfb\u5199\u6f14\u793a\n*\/\nFILE *fp;\nfp = fopen(\"c:\\\\temp\\\\test.txt\", \"r\");\/\/\u8bfb\u53d6\u6587\u4ef6\u6307\u9488\n\nif(fp == NULL)\/\/\u5224\u65ad\u6307\u9488\u662f\u5426\u4e3a\u7a7a\nprintf(\"fail to open the file! \\n\");\nelse\n{\nprintf(\"The file is open! \\n\");\nfclose(fp);\/\/\u5173\u95ed\u6587\u4ef6\u6d41\n}<\/pre>\n<h1>\u6587\u672c\u6587\u4ef6\u5b57\u7b26\u64cd\u4f5c<\/h1>\n<h2>\u8bfb\u53d6\u5b57\u7b26<\/h2>\n<p>\u51fd\u6570\u539f\u578b\u4e3a\uff1a<\/p>\n<pre class=\"code\">_CRTIMP int __cdecl fgetc(FILE *);<\/pre>\n<p>\u5b57\u7b26\u8bfb\u53d6\u51fd\u6570fgetc()\u53ef\u4ece\u6587\u4ef6\u6570\u636e\u6d41\u4e2d\u4e00\u6b21\u8bfb\u53d6\u4e00\u4e2a\u5b57\u7b26\uff0c\u7136\u540e\u8bfb\u53d6\u5149\u6807\u79fb\u52a8\u5230\u4e0b\u4e00\u4e2a\u5b57\u7b26\uff0c\u5e76\u9010\u6b65\u5c06\u6587\u4ef6\u7684\u5185\u5bb9\u8bfb\u51fa\u3002<br \/>\n\u5982\u679c\u5b57\u7b26\u8bfb\u53d6\u6210\u529f\uff0c\u5219\u8fd4\u56de\u6240\u8bfb\u53d6\u7684\u5b57\u7b26\uff0c\u5426\u5219\u8fd4\u56deEOF(end of file)\u3002EOF\u662f\u8868\u793a\u6570\u636e\u7ed3\u5c3e\u7684\u5e38\u91cf\uff0c\u771f\u503c\u4e3a-1\u3002<\/p>\n<p>\u53e6\u5916\uff0c\u8981\u5224\u65ad\u6587\u4ef6\u662f\u5426\u8bfb\u53d6\u5b8c\u6bd5\uff0c\u53ef\u5229\u7528feof()\u8fdb\u884c\u68c0\u67e5\u3002\u672a\u5b8c\u8fd4\u56de0\uff0c\u5df2\u5b8c\u8fd4\u56de\u975e\u96f6\u503c\u3002<br \/>\nfeof()\u51fd\u6570\u539f\u578b\u4e3a\uff1a<\/p>\n<pre class=\"code\">_CRTIMP int __cdecl feof(FILE *);<\/pre>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"c\" data-enlighter-theme=\"atomic\">\/*\n\u8bfb\u53d6\u5b57\u7b26\u6f14\u793a\n\u5229\u7528feof()\u51fd\u6570\u68c0\u67e5\u6587\u4ef6\u662f\u5426\u8bfb\u53d6\u5b8c\u6bd5\n*\/\nFILE *fp;\nfp = fopen(\"c:\\\\path\\\\e.txt\",\"r\");\nif(fp == NULL){\nprintf(\"\u6587\u4ef6\u6253\u5f00\u5931\u8d25\");\n}else{\nwhile(!feof(fp)){\nprintf(\"%c\",fget(fp));\n}\n}\nfclose(fp);<\/pre>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"c\" data-enlighter-theme=\"atomic\">\/*\n\u8bfb\u53d6\u5b57\u7b26\u6f14\u793a\n\u5229\u7528EOF\u68c0\u67e5\u6587\u4ef6\u662f\u5426\u8bfb\u53d6\u5b8c\u6bd5\n*\/ \nFILE *fp; \nfp = fopen(\"c:\\\\path\\\\e.txt\",\"r\"); \nif(fp == NULL){ printf(\"\u6587\u4ef6\u6253\u5f00\u5931\u8d25\"); \n}else{ \nwhile((char ch = fgetc(fp))!=EOF){ \nprintf(\"%c\",ch); \n} \n} \nfclose(fp);<\/pre>\n<h2>\u5199\u5165\u5b57\u7b26<\/h2>\n<p>\u51fd\u6570\u539f\u578b\u4e3a\uff1a<\/p>\n<pre class=\"code\">_CRTIMP int __cdecl fputc(int, FILE *);<\/pre>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"c\" data-enlighter-theme=\"atomic\">\/*\n\u5199\u5165\u5b57\u7b26\u6f14\u793a\n*\/\nchar filename[20], ch;\nFILE *fp;\nprintf(\"Enter a filename: \");\nscanf(\"%s\", filename);\nprintf(\"Enter some characters to output to file: \");\nif((fp = fopen(filename, \"w\")) == NULL)\nprintf(\"fail to open! \\n\");\nelse\n{\nwhile((ch = getchar()) != '\\0')\nfputc(ch, fp);\n}\nfclose(fp);<\/pre>\n<h1>\u6587\u672c\u6587\u4ef6\u5b57\u7b26\u4e32\u64cd\u4f5c<\/h1>\n<h2>\u8bfb\u53d6\u5b57\u7b26\u4e32<\/h2>\n<p>\u51fd\u6570\u539f\u578b\u4e3a\uff1a<\/p>\n<pre class=\"code\">_CRTIMP char * __cdecl fgets(char *, int, FILE *);<\/pre>\n<p>fgets\u51fd\u6570\u7684\u4f5c\u7528\u662f\u4ece\u6307\u5b9a\u6587\u4ef6\u8bfb\u5165\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0c\u5982\uff1afgets(str, n, fp);<br \/>\n\u53c2\u6570n\u4e3a\u8981\u6c42\u5f97\u5230\u7684\u5b57\u7b26\u4e2a\u6570\uff0c<strong>\u4f46\u53ea\u4ecefp\u6307\u5411\u7684\u6587\u4ef6\u8f93\u5165n-1\u4e2a\u5b57\u7b26\uff0c\u7136\u540e\u5728\u6700\u540e\u52a0\u4e00\u4e2a&#8217;\\0&#8217;\u5b57\u7b26\uff0c\u56e0\u6b64\u5f97\u5230\u7684\u5b57\u7b26\u4e32\u5171\u6709n\u4e2a\u5b57\u7b26<\/strong>\uff0c\u628a\u5b83\u4eec\u653e\u5728\u5b57\u7b26\u6570\u7ec4str\u4e2d\u3002\u5982\u679c\u5728\u8bfb\u5b8cn-1\u4e2a\u5b57\u7b26\u4e4b\u524d\u9047\u5230\u6362\u884c\u7b26\u6216EOF\uff0c\u8bfb\u5165\u7ed3\u675f\u3002<\/p>\n<p>&nbsp;<\/p>\n<h2>\u5199\u5165\u5b57\u7b26\u4e32<\/h2>\n<p>\u51fd\u6570\u539f\u578b\u4e3a\uff1a<\/p>\n<pre class=\"code\">_CRTIMP int __cdecl fputs(const char *, FILE *);<\/pre>\n<p>fputs\u51fd\u6570\u7684\u4f5c\u7528\u662f\u5411\u6307\u5b9a\u6587\u4ef6\u8f93\u51fa\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0c\u5982\uff1afputs(&#8220;Hey&#8221;, fp);<br \/>\n\u628a\u5b57\u7b26\u4e32&#8221;Hey&#8221;\u8f93\u51fa\u5230fp\u6307\u5411\u7684\u6587\u4ef6\u3002fputs\u51fd\u6570\u7684\u7b2c\u4e00\u4e2a\u53c2\u6570\u53ef\u4ee5\u662f\u5b57\u7b26\u4e32\u5e38\u91cf\u3001\u5b57\u7b26\u6570\u7ec4\u540d\u6216\u5b57\u7b26\u578b\u6307\u9488\u3002\u82e5\u8f93\u51fa\u6210\u529f\uff0c\u5219\u8fd4\u56de0\uff0c\u5426\u5219\u8fd4\u56deEOF\u3002<\/p>\n<h2><b>\u683c\u5f0f\u5316\u5b58\u53d6\u51fd\u6570<\/b><\/h2>\n<p>\u51fd\u6570\u539f\u578b\u4e3a\uff1a<\/p>\n<pre class=\"code\">_CRTIMP int __cdecl fprintf(FILE *, const char *, ...);\n_CRTIMP int __cdecl fscanf(FILE *, const char *, ...);<\/pre>\n<p>\u5b83\u4eec\u4e0eprintf\u548cscanf\u51fd\u6570\u76f8\u4eff\uff0c\u90fd\u662f\u683c\u5f0f\u5316\u8bfb\u5199\u51fd\u6570\u3002\u4e0d\u540c\u7684\u662f\uff1afprintf\u548cfscanf\u51fd\u6570\u7684\u8bfb\u5199\u5bf9\u8c61\u4e0d\u662f\u7ec8\u7aef(\u6807\u51c6\u8f93\u5165\u8f93\u51fa)\uff0c\u800c\u662f\u78c1\u76d8\u6587\u4ef6\u3002printf\u51fd\u6570\u662f\u5c06\u5185\u5bb9\u8f93\u51fa\u5230\u7ec8\u7aef(\u5c4f\u5e55)\uff0c\u56e0\u6b64\uff0cfprintf\u5c31\u662f\u5c06\u5185\u5bb9\u8f93\u51fa\u5230\u78c1\u76d8\u6587\u4ef6\u4e86\u3002<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"c\" data-enlighter-theme=\"atomic\">\/*\n\u683c\u5f0f\u5316\u64cd\u4f5c\u6f14\u793a\n*\/\nFILE *fp;\n\nint num = 10;\nchar name[10] = \"Leeming\";\nchar gender = 'M';\n\nif((fp = fopen(\"info.txt\", \"w+\")) == NULL)\nprintf(\"can't open the file! \\n\");\nelse\nfprintf(fp, \"%d, %s, %c\", num, name, gender); \/\/\u5c06\u6570\u636e\u683c\u5f0f\u5316\u8f93\u51fa\u5230\u6587\u4ef6info.txt\u4e2d\n\nfscanf(fp, \"%d, %s, %c\", &amp;num, name, &amp;gender); \/\/\u4ece\u6587\u4ef6info.txt\u4e2d\u683c\u5f0f\u5316\u8bfb\u53d6\u6570\u636e\nprintf(\"%d, %s, %c \\n\", num, name, gender); \/\/\u683c\u5f0f\u5316\u8f93\u51fa\u5230\u5c4f\u5e55\n\nfclose(fp);<\/pre>\n<h1>\u4e8c\u8fdb\u5236\u6587\u4ef6\u64cd\u4f5c<\/h1>\n<h2>\u6570\u636e\u5757\u5b58\u53d6\u51fd\u6570<\/h2>\n<p>\u51fd\u6570\u539f\u578b\uff1a<\/p>\n<pre class=\"code\">_CRTIMP size_t __cdecl fread(void *, size_t, size_t, FILE *);\n_CRTIMP size_t __cdecl fwrite(const void *, size_t, size_t, FILE *);<\/pre>\n<p>\u5f53\u8981\u6c42\u4e00\u6b21\u5b58\u53d6\u4e00\u7ec4\u6570\u636e\uff08\u5982\uff0c\u4e00\u4e2a\u6570\u7ec4\u3001\u4e00\u4e2a\u7ed3\u6784\u4f53\u53d8\u91cf\u7684\u503c\uff09\uff0cfread\u548cfwrite\u51fd\u6570\u53ef\u4ee5\u89e3\u51b3\u8be5\u7c7b\u95ee\u9898\u3002\u5b83\u4eec\u7684\u8c03\u7528\u5f62\u5f0f\u4e00\u822c\u4e3a\uff1a<br \/>\nfread(buffer, size, count, fp);<br \/>\nfwrite(buffer, size, count, fp);<br \/>\nbuffer\uff1a\u5bf9\u4e8efread\u6765\u8bf4\uff0c\u6307\u7684\u662f\u8bfb\u5165\u6570\u636e\u7684\u5b58\u653e\u5730\u5740\uff1b\u5bf9\u4e8efwrite\u6765\u8bf4\uff0c\u662f\u8981\u8f93\u51fa\u6570\u636e\u7684\u5730\u5740(\u7f13\u51b2\u533a)\u3002<br \/>\nsize\uff1a\u8bfb\u5199\u6570\u636e\u65f6\uff0c\u6bcf\u7b14\u6570\u636e\u7684\u5927\u5c0f\u3002<br \/>\ncount\uff1a\u8bfb\u5199\u6570\u636e\u7684\u7b14\u6570\u3002<br \/>\nfp\uff1a\u6587\u4ef6\u6307\u9488\u3002<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"c\" data-enlighter-theme=\"atomic\">\/*\n\u8bfb\u53d6\u4e8c\u8fdb\u5236\u6587\u4ef6\u6f14\u793a\n*\/\nFILE *fp;\nfp = fopen(\"path\",\"rb+\");\nif(fp == NULL){\n\/\/WARNING\n}else{\nint a[2];\nfread(a,4,2,fp); \/\/\u8bfb2\u4e2a\u5355\u5143\u5b58\u50a8\u4e8e\u6570\u7ec4\u4e2d\uff0c\u6bcf\u4e2a\u5355\u51434\u4e2a\u5b57\u8282\n}\nfclose(fp);<\/pre>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"c\" data-enlighter-theme=\"atomic\">\/*\n\u5199\u5165\u4e8c\u8fdb\u5236\u6587\u4ef6\u6f14\u793a\n*\/\nFILE *fp;\nfp = fopen(\"path\",\"wb+\");\nif(fp == NULL){\n\/\/WARNING\n}else{\nint a[2] = {1,2};\nfwrite(a,4,2,fp); \/\/\u5199\u6570\u7ec4\u4e2d2\u4e2a\u5355\u5143\uff0c\u6bcf\u4e2a\u5355\u51434\u4e2a\u5b57\u8282\n}\nfclose(fp);<\/pre>\n<h2>\u968f\u673a\u5b58\u53d6\u51fd\u6570fseek()<\/h2>\n<p>\u51fd\u6570\u539f\u578b\uff1a<\/p>\n<pre class=\"code\">_CRTIMP int __cdecl fseek(FILE *, long, int);<\/pre>\n<p>\u5bf9\u6d41\u5f0f\u6587\u4ef6\u53ef\u4ee5\u8fdb\u884c\u987a\u5e8f\u8bfb\u5199\uff0c\u4e5f\u53ef\u4ee5\u8fdb\u884c\u968f\u673a\u8bfb\u5199\u3002\u5173\u952e\u5728\u4e8e\u63a7\u5236\u6587\u4ef6\u7684\u4f4d\u7f6e\u6307\u9488\uff0c\u5982\u679c\u4f4d\u7f6e\u6307\u9488\u662f\u6309\u5b57\u8282\u4f4d\u7f6e\u987a\u5e8f\u79fb\u52a8\u7684\uff0c\u5c31\u662f\u987a\u5e8f\u8bfb\u5199\u3002\u5982\u679c\u80fd\u5c06\u4f4d\u7f6e\u6307\u9488\u6309\u9700\u8981\u79fb\u52a8\u5230\u4efb\u610f\u4f4d\u7f6e\uff0c\u5c31\u53ef\u4ee5\u5b9e\u73b0\u968f\u673a\u8bfb\u5199\u3002\u6240\u8c13\u968f\u673a\u8bfb\u5199\uff0c\u662f\u6307\u8bfb\u5b8c\u4e0a\u4e00\u4e2a\u5b57\u7b26(\u5b57\u8282)\u540e\uff0c\u5e76\u4e0d\u4e00\u5b9a\u8981\u8bfb\u5199\u5176\u540e\u7eed\u7684\u5b57\u7b26(\u5b57\u8282)\uff0c\u800c\u53ef\u4ee5\u8bfb\u5199\u6587\u4ef6\u4e2d\u4efb\u610f\u4f4d\u7f6e\u4e0a\u6240\u9700\u8981\u7684\u5b57\u7b26(\u5b57\u8282)\u3002\u8be5\u51fd\u6570\u7684\u8c03\u7528\u5f62\u5f0f\u4e3a\uff1a<br \/>\nfseek(fp, offset, 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\/>\n\u8c03\u7528\u5b9e\u4f8b\u5982\uff1a<\/p>\n<pre class=\"code\">fseek(fp, i*sizeof(Person), 0);<\/pre>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u57fa\u7840\u6982\u5ff5 \u6570\u636e\u6d41 \u7a0b\u5e8f\u4e0e\u6570\u636e\u7684\u4ea4\u4e92\u662f\u4ee5\u6d41\u7684\u5f62\u5f0f\u8fdb\u884c\u7684\u3002\u8fdb\u884cC\u8bed\u8a00\u6587\u4ef6\u7684\u5b58\u53d6\u65f6\uff0c\u90fd\u4f1a\u5148\u8fdb\u884c\u201c\u6253\u5f00\u6587\u4ef6\u201d\u64cd\u4f5c\uff0c\u8fd9\u4e2a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[9,14,8],"tags":[11,12,13],"class_list":["post-24","post","type-post","status-publish","format-standard","hentry","category-c","category-c-code","category-code","tag-c","tag-code","tag-file"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin 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