vscode怎么对选定的代码格式化？ctrl+k,ctrl+f（格式化代码）shift+alt+f
然后按CTRL + K。
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先选中代码：
然后按CTRL + K
再按CTRL+F
也可以先选择要格式化的代码块，ctrl+shift+p，搜索format，然后第二个就是：
20230816
VSCode中的代码格式化
在本文中，我们将深入探讨如何在Visual Studio Code (VSCode)中对选定的代码进行格式化。代码格式化是提高代码可读性和维护性的关键步骤，也是良好编程实践的一部分。
1. 基础：使用内置快捷键进行格式化
在VSCode中，你可以使用快捷键对选定的代码进行格式化。最常用的快捷键包括Ctrl + K, Ctrl + F和Shift + Alt + F。
Ctrl + K, Ctrl + F: 使用这个快捷键可以对当前选定的代码块进行格式化。
// 未格式化的JavaScript代码
let a=1;let b=2;if(a<b){console.log("A is less than B");}else{console.log("B is less than A");}
// 使用Ctrl + K, Ctrl + F格式化后的代码
let a = 1;
let b = 2;
if (a < b) {
console.log("A is less than B");
} else {
console.log("B is less than A");
}
Shift + Alt + F: 这个快捷键则会格式化整个文件。
2. 扩展：使用插件进行代码格式化
VSCode有丰富的插件库，其中一些插件提供了更强大的代码格式化功能。例如，Prettier、ESLint等。
2.1 Prettier
Prettier 是一个强大的代码格式化工具，支持多种语言。安装完Prettier插件后，可以通过Ctrl + Shift + P打开命令面板，然后输入并选择Format Document With... -> Prettier来格式化整个文档。
// 未格式化的JavaScript代码
let a=1;let b=2;if(a<b){console.log("A is less than B");}else{console.log("B is less than A");}
// 使用Prettier格式化后的代码
let a = 1;
let b = 2;
if (a < b) {
console.log("A is less than B");
} else {
console.log("B is less than A");
}
2.2 ESLint
ESLint 是一个可扩展的JavaScript检查工具，它也可以用来格式化代码。首先需要在项目中安装ESLint，并配置相应的规则。然后，就可以使用ESLint插件来格式化代码了。
// 未格式化的JavaScript代码
let a=1;let b=2;if(a<b){console.log("A is less than B");}else{console.log("B is less than A");}
// 使用ESLint格式化后的代码
let a = 1;
let b = 2;
if (a < b) {
console.log('A is less than B');
} else {
console.log('B is less than A');
}
3. 自定义：调整VSCode的格式化设置
VSCode允许用户根据自己的需求调整格式化设置。可以通过File -> Preferences -> Settings进入设置界面，在搜索框中输入format查找相关设置。
参考文档：
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