{"id":31816,"date":"2023-04-07T08:30:40","date_gmt":"2023-05-23T13:00:01","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8node-js%e7%9a%84fs%e6%a8%a1%e5%9d%97%e7%9a%84%e6%96%b9%e6%b3%95\/"},"modified":"2024-04-29T22:19:57","modified_gmt":"2024-04-29T14:19:57","slug":"%e4%bd%bf%e7%94%a8node-js%e7%9a%84fs%e6%a8%a1%e5%9d%97%e7%9a%84%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8node-js%e7%9a%84fs%e6%a8%a1%e5%9d%97%e7%9a%84%e6%96%b9%e6%b3%95\/","title":{"rendered":"\u4f7f\u7528Node.js\u7684fs\u6a21\u5757\u7684\u65b9\u6cd5"},"content":{"rendered":"<p>\u6574\u7406\u4e86FS\u6a21\u5757\u7684\u4f7f\u7528\u65b9\u6cd5\u3002<\/p>\n<h1>\u524d\u63d0\u6761\u4ef6<\/h1>\n<ul class=\"post-ul\">npm\u304c\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u3066\u3044\u308b\u3053\u3068<\/ul>\n<h1>\u540c\u65f6\u548c\u5f02\u6b65<\/h1>\n<p>\u53ef\u4ee5\u6267\u884c\u4e24\u79cd\u6587\u4ef6\u5904\u7406\uff1a\u540c\u6b65\u5904\u7406\u548c\u5f02\u6b65\u5904\u7406\u3002<br \/>\n\u5982\u679c\u52a0\u4e0a Sync\uff0c\u5219\u8868\u793a\u540c\u6b65\u5904\u7406\uff1b\u4e0d\u52a0\u5219\u8868\u793a\u5f02\u6b65\u5904\u7406\u3002<\/p>\n<div>\n<div class=\"post-table\">\u540c\u671f\u975e\u540c\u671fstatSyncstatreadFileSyncreadFilecopyFileSynccopyFileunlinkSyncunlink<\/div>\n<\/div>\n<p>\u540c\u671f\u306f\u51e6\u7406\u3092\u5b8c\u4e86\u3059\u308b\u307e\u3067\u5f8c\u7d9a\u306e\u51e6\u7406\u3092\u6b62\u3081\u308b<\/p>\n<p>\u975e\u540c\u671f\u306f\u51e6\u7406\u306e\u5b8c\u4e86\u3092\u5f85\u305f\u305a\u306b\u5f8c\u7d9a\u306e\u51e6\u7406\u3092\u884c\u3046<\/p>\n<h2>\u8bbe\u5b9a<\/h2>\n<p>\u4f7f\u7528mkdir\u547d\u4ee4\u548ctouch\u547d\u4ee4\u6765\u521b\u5efa\u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span><span class=\"nb\">mkdir dir<\/span> <span class=\"o\">&amp;&amp;<\/span> <span class=\"nb\">touch <\/span>test.js <span class=\"nb\">dir<\/span>\/test.txt\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">fs<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">require<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">fs<\/span><span class=\"dl\">'<\/span><span class=\"p\">)<\/span>\r\n\r\n<span class=\"k\">try<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">fs<\/span><span class=\"p\">.<\/span><span class=\"nx\">statSync<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">dir\/test.txt<\/span><span class=\"dl\">'<\/span><span class=\"p\">)<\/span>\r\n  <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nx\">log<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">\u540c\u671f\u51e6\u7406<\/span><span class=\"dl\">'<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span> <span class=\"k\">catch<\/span> <span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nx\">log<\/span><span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"nx\">fs<\/span><span class=\"p\">.<\/span><span class=\"nx\">stat<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">dir\/test.txt<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">)<\/span> <span class=\"k\">throw<\/span> <span class=\"nx\">err<\/span>\r\n  <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nx\">log<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">\u975e\u540c\u671f\u51e6\u7406<\/span><span class=\"dl\">'<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">})<\/span>\r\n\r\n<span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nx\">log<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">\u5f8c\u7d9a\u306e\u51e6\u7406<\/span><span class=\"dl\">'<\/span><span class=\"p\">)<\/span>\r\n<\/code><\/pre>\n<h2>\u6267\u884c<\/h2>\n<p>\u6267\u884cnode\u547d\u4ee4\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>node <span class=\"nb\">test<\/span>\r\n<\/code><\/pre>\n<h2>\u8f93\u51fa\u7ed3\u679c (sh\u016b ch\u016b ji\u00e9 gu\u01d2)<\/h2>\n<pre class=\"post-pre\"><code><span class=\"go\">\u540c\u671f\u51e6\u7406\r\n\u5f8c\u7d9a\u306e\u51e6\u7406\r\n\u975e\u540c\u671f\u51e6\u7406\r\n<\/span><\/code><\/pre>\n<h1>\u4f7f\u7528\u65b9\u6cd5<\/h1>\n<h2>\u786e\u8ba4\u6587\u4ef6\u662f\u5426\u5b58\u5728\u3002<\/h2>\n<p>\u5982\u679c\u6587\u4ef6\u5b58\u5728\uff0c\u53ef\u4ee5\u83b7\u53d6\u5bf9\u8c61\u3002<br \/>\n\u901a\u8fc7isDirectory\u65b9\u6cd5\u53ef\u4ee5\u786e\u8ba4\u662f\u5426\u4e3a\u76ee\u5f55\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">fs<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">require<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">fs<\/span><span class=\"dl\">'<\/span><span class=\"p\">)<\/span>\r\n\r\n<span class=\"k\">try<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"kd\">const<\/span> <span class=\"nx\">dir<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">fs<\/span><span class=\"p\">.<\/span><span class=\"nx\">statSync<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">dir<\/span><span class=\"dl\">'<\/span><span class=\"p\">)<\/span>\r\n  <span class=\"kd\">const<\/span> <span class=\"nx\">file<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">fs<\/span><span class=\"p\">.<\/span><span class=\"nx\">statSync<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">dir\/test.txt<\/span><span class=\"dl\">'<\/span><span class=\"p\">)<\/span>\r\n  <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nx\">log<\/span><span class=\"p\">(<\/span><span class=\"nx\">dir<\/span><span class=\"p\">.<\/span><span class=\"nx\">isDirectory<\/span><span class=\"p\">())<\/span>\r\n  <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nx\">log<\/span><span class=\"p\">(<\/span><span class=\"nx\">file<\/span><span class=\"p\">.<\/span><span class=\"nx\">isDirectory<\/span><span class=\"p\">())<\/span>\r\n<span class=\"p\">}<\/span> <span class=\"k\">catch<\/span> <span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nx\">log<\/span><span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u6267\u884c\u7ed3\u679c<\/p>\n<pre class=\"post-pre\"><code><span class=\"go\">true\r\nfalse\r\n<\/span><\/code><\/pre>\n<h2>\u83b7\u53d6\u6587\u4ef6\u5217\u8868<\/h2>\n<pre class=\"post-pre\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">fs<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">require<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">fs<\/span><span class=\"dl\">'<\/span><span class=\"p\">)<\/span>\r\n\r\n<span class=\"k\">try<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nx\">log<\/span><span class=\"p\">(<\/span><span class=\"nx\">fs<\/span><span class=\"p\">.<\/span><span class=\"nx\">readdirSync<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">dir<\/span><span class=\"dl\">'<\/span><span class=\"p\">))<\/span>\r\n<span class=\"p\">}<\/span> <span class=\"k\">catch<\/span> <span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nx\">log<\/span><span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u6267\u884c\u7ed3\u679c<\/p>\n<pre class=\"post-pre\"><code><span class=\"go\">[ 'test.txt' ]\r\n<\/span><\/code><\/pre>\n<h2>\u8bfb\u53d6\u6587\u4ef6<\/h2>\n<pre class=\"post-pre\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">fs<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">require<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">fs<\/span><span class=\"dl\">'<\/span><span class=\"p\">)<\/span>\r\n\r\n<span class=\"k\">try<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nx\">log<\/span><span class=\"p\">(<\/span><span class=\"nx\">fs<\/span><span class=\"p\">.<\/span><span class=\"nx\">readFileSync<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">dir\/test.txt<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">utf8<\/span><span class=\"dl\">'<\/span><span class=\"p\">))<\/span>\r\n<span class=\"p\">}<\/span> <span class=\"k\">catch<\/span> <span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nx\">log<\/span><span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code>Hello world!\r\n<\/code><\/pre>\n<p>\u7ed3\u679c \u5b9e\u65bd<\/p>\n<pre class=\"post-pre\"><code><span class=\"go\">Hello world!\r\n<\/span><\/code><\/pre>\n<h2>\u5199\u5165\u6587\u4ef6<\/h2>\n<p>\u5982\u679c\u6587\u4ef6\u4e0d\u5b58\u5728\uff0c\u5219\u521b\u5efa\u65b0\u6587\u4ef6\uff1b\u5982\u679c\u6587\u4ef6\u5b58\u5728\uff0c\u5219\u8fdb\u884c\u8986\u76d6\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">fs<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">require<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">fs<\/span><span class=\"dl\">'<\/span><span class=\"p\">)<\/span>\r\n\r\n<span class=\"k\">try<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">fs<\/span><span class=\"p\">.<\/span><span class=\"nx\">writeFileSync<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">dir\/test2.txt<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">Hello world!!<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">utf8<\/span><span class=\"dl\">'<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span> <span class=\"k\">catch<\/span> <span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nx\">log<\/span><span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u6267\u884c\u7ed3\u679c<\/p>\n<pre class=\"post-pre\"><code>Hello world!!\r\n<\/code><\/pre>\n<h2>\u5199\u5165\u6587\u4ef6<\/h2>\n<pre class=\"post-pre\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">fs<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">require<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">fs<\/span><span class=\"dl\">'<\/span><span class=\"p\">)<\/span>\r\n\r\n<span class=\"k\">try<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">fs<\/span><span class=\"p\">.<\/span><span class=\"nx\">appendFileSync<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">dir\/test.txt<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">Hello overwrite!<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">utf8<\/span><span class=\"dl\">'<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span> <span class=\"k\">catch<\/span> <span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nx\">log<\/span><span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code>Hello world!!\r\n<\/code><\/pre>\n<p>\u6267\u884c\u7ed3\u679c (Sh\u00ed<\/p>\n<pre class=\"post-pre\"><code>Hello world!!\r\nHello overwrite!\r\n<\/code><\/pre>\n<h2>\u6587\u4ef6\u7684\u62f7\u8d1d<\/h2>\n<pre class=\"post-pre\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">fs<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">require<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">fs<\/span><span class=\"dl\">'<\/span><span class=\"p\">)<\/span>\r\n\r\n<span class=\"k\">try<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">fs<\/span><span class=\"p\">.<\/span><span class=\"nx\">copyFileSync<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">dir\/test.txt<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">dir\/test2.txt<\/span><span class=\"dl\">'<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span> <span class=\"k\">catch<\/span> <span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nx\">log<\/span><span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<h2>\u5220\u9664\u6587\u4ef6<\/h2>\n<pre class=\"post-pre\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">fs<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">require<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">fs<\/span><span class=\"dl\">'<\/span><span class=\"p\">)<\/span>\r\n\r\n<span class=\"k\">try<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">fs<\/span><span class=\"p\">.<\/span><span class=\"nx\">unlinkSync<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">dir\/test.txt<\/span><span class=\"dl\">'<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span> <span class=\"k\">catch<\/span> <span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nx\">log<\/span><span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<h1>\u6587\u732e\u5f15\u7528<\/h1>\n<p>\u672c\u6587\u6839\u636e\u4ee5\u4e0b\u4fe1\u606f\u8fdb\u884c\u4e86\u64b0\u5199\u3002<\/p>\n<ul 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Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u4f7f\u7528node-js\u7684fs\u6a21\u5757\u7684\u65b9\u6cd5\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u4f7f\u7528Node.js\u7684fs\u6a21\u5757\u7684\u65b9\u6cd5\" \/>\n<meta property=\"og:description\" content=\"\u6574\u7406\u4e86FS\u6a21\u5757\u7684\u4f7f\u7528\u65b9\u6cd5\u3002 \u524d\u63d0\u6761\u4ef6 npm\u304c\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u3066\u3044\u308b\u3053\u3068 \u540c\u65f6\u548c\u5f02\u6b65 \u53ef\u4ee5\u6267\u884c\u4e24\u79cd\u6587\u4ef6\u5904\u7406\uff1a\u540c [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u4f7f\u7528node-js\u7684fs\u6a21\u5757\u7684\u65b9\u6cd5\/\" \/>\n<meta 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