有时用vscode打开一个日志文件，明明这个日志不断在写，但是vscode上的内容就是不变化。。。
反复打开，发现最后一行就没变化过。。。
解决办法：将这个文件拷贝一份，再打开就行了
这个问题的原因还不是很清楚。。。
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文章目录
VSCode文件不实时刷新问题的解决方案
在日常开发中，Visual Studio Code (VSCode) 是一款非常流行的编辑器。然而，有时候我们可能会遇到VSCode不实时刷新文件的问题，即当你对文件进行更改后，VSCode并没有立即显示出这些变化。这是一个很常见的问题，本文将详细介绍如何解决这个问题。
问题描述
打开VSCode的文件，对其进行修改，保存后，发现文件内容没有实时更新。同样的情况也会发生在VSCode的日志文件上，对日志文件的更新并没有实时反映在VSCode的界面上。
原因分析
VSCode不实时刷新文件或日志的原因可能有以下几种：
- 缓存问题：VSCode可能会将一些文件和日志信息缓存起来，当文件更新时，VSCode并没有清除对应的缓存，导致用户看到的是旧的文件内容。
- 文件监控问题：VSCode依赖于操作系统的文件监控服务来监听文件变化。如果这个服务存在问题，或者被某些安全软件阻止了，那么VSCode就无法获取到文件的变化信息。
- VSCode配置问题：VSCode的某些设置可能会影响其文件刷新机制。例如，
"files.autoSave"设置项的值可能会影响文件保存和刷新的行为。
解决方案
接下来我们将分别从上述三个方面来探讨解决方案。
解决缓存问题
当遇到VSCode不实时刷新文件的问题时，首先可以尝试清除VSCode的缓存。这可以通过以下步骤完成：
# 关闭VSCodekillall code
# 清除VSCode的缓存rm-rf ~/Library/Application\ Support/Code/CachedData/*
# 重新打开VSCodeopen /Applications/Visual\ Studio\ Code.app
请注意，以上命令适用于macOS系统。在Windows和Linux系统上，清除VSCode缓存的方法可能会有所不同。
解决文件监控问题
如果VSCode的文件监控服务存在问题，可以通过调整VSCode的设置来解决。在VSCode的设置文件（
settings.json
）中，可以找到以下两个设置项：
"files.watcherExclude":{"**/.git/objects/**":true,"**/.git/subtree-cache/**":true,"**/node_modules/*/**":true},"files.useExperimentalFileWatcher":false
"files.watcherExclude"
设置项定义了哪些文件和目录是不需要被VSCode监控的。如果你发现某些文件的变化没有被VSCode捕获，可以检查这些文件是否被排除在外。
"files.useExperimentalFileWatcher"
设置项决定了VSCode是否使用实验性的文件监控服务。如果你的操作系统的文件监控服务存在问题，可以尝试启用这个选项。
调整VSCode配置
VSCode的一些配置可能会影响文件刷新的行为。例如，
"files.autoSave"
设置项的值决定了文件何时自动保存。其可选的值有：
"off"：关闭自动保存。"afterDelay"：当文件未被修改一段时间后自动保存。"onFocusChange"：当VSCode失去焦点时自动保存。"onWindowChange"：当VSCode窗口失去焦点时自动保存。
如果你希望VSCode能够在文件被修改后立即保存和刷新，可以将
"files.autoSave"
的值设置为
"afterDelay"
，并通过
"files.autoSaveDelay"
设置项来调整延迟时间。
参考链接
- Visual Studio Code User and Workspace Settings
- Visual Studio Code FAQ
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