python代码片段(vscode)

在最新的vscode的python插件更新后，不提供代码片段的功能，因此要自己手添加用户代码片段。使用方法如下：

• 复制下方给出的代码片段
• 打开vscode
• 左下角设置->用户代码片段->python.json
• 全部删掉后替换成刚刚复制的内容

再次使用后vscode提供代码片段联想功能,输入部分代码后可提供多种代码格式,如下图：

可根据代码片段书写格式自定义代码片段。
代码片段如下：

{
	// Place your snippets for python here. Each snippet is defined under a snippet name and has a prefix, body and 
	// description. The prefix is what is used to trigger the snippet and the body will be expanded and inserted. Possible variables are:
	// $1, $2 for tab stops, $0 for the final cursor position, and ${1:label}, ${2:another} for placeholders. Placeholders with the 
	// same ids are connected.
	// Example:
	// "Print to console": {
	// 	"prefix": "log",
	// 	"body": [
	// 		"console.log('$1');",
	// 		"$2"
	// 	],
	// 	"description": "Log output to console"
	// }
	"HEADER": {
		"prefix": "HEADER",
		"body": [
			"#!/usr/bin/env python",
			"# -*- encoding: utf-8 -*-",
			"'''",
			"@文件    :$TM_FILENAME",
			"@说明    :",
			"@时间    :$CURRENT_YEAR/$CURRENT_MONTH/$CURRENT_DATE $CURRENT_HOUR:$CURRENT_MINUTE:$CURRENT_SECOND",
			"@作者    :ljw",
			"@版本    :1.0",
			"'''",
			"",
			"$0"
		],
	},
	"if": {
		"prefix": "if",
		"body": [
			"if ${1:expression}:",
			"\t${2:pass}"
		],
		"description": "Code snippet for an if statement"
	},
	"if/else": {
		"prefix": "if/else",
		"body": [
			"if ${1:condition}:",
			"\t${2:pass}",
			"else:",
			"\t${3:pass}"
		],
		"description": "Code snippet for an if statement with else"
	},
	"elif": {
		"prefix": "elif",
		"body": [
			"elif ${1:expression}:",
			"\t${2:pass}"
		],
		"description": "Code snippet for an elif"
	},
	"else": {
		"prefix": "else",
		"body": [
			"else:",
			"\t${1:pass}"
		],
		"description": "Code snippet for an else"
	},
	"while": {
		"prefix": "while",
		"body": [
			"while ${1:expression}:",
			"\t${2:pass}"
		],
		"description": "Code snippet for a while loop"
	},
	"while/else": {
		"prefix": "while/else",
		"body": [
			"while ${1:expression}:",
			"\t${2:pass}",
			"else:",
			"\t${3:pass}"
		],
		"description": "Code snippet for a while loop with else"
	},
	"for": {
		"prefix": "for",
		"body": [
			"for ${1:target_list} in ${2:expression_list}:",
			"\t${3:pass}"
		],
		"description": "Code snippet for a for loop"
	},
	"for/else": {
		"prefix": "for/else",
		"body": [
			"for ${1:target_list} in ${2:expression_list}:",
			"\t${3:pass}",
			"else:",
			"\t${4:pass}"
		],
		"description": "Code snippet for a for loop with else"
	},
	"try/except": {
		"prefix": "try/except",
		"body": [
			"try:",
			"\t${1:pass}",
			"except ${2:expression} as ${3:identifier}:",
			"\t${4:pass}"
		],
		"description": "Code snippet for a try/except statement"
	},
	"try/finally": {
		"prefix": "try/finally",
		"body": [
			"try:",
			"\t${1:pass}",
			"finally:",
			"\t${2:pass}"
		],
		"description": "Code snippet for a try/finally statement"
	},
	"try/except/else": {
		"prefix": "try/except/else",
		"body": [
			"try:",
			"\t${1:pass}",
			"except ${2:expression} as ${3:identifier}:",
			"\t${4:pass}",
			"else:",
			"\t${5:pass}"
		],
		"description": "Code snippet for a try/except/else statement"
	},
	"try/except/finally": {
		"prefix": "try/except/finally",
		"body": [
			"try:",
			"\t${1:pass}",
			"except ${2:expression} as ${3:identifier}:",
			"\t${4:pass}",
			"finally:",
			"\t${5:pass}"
		],
		"description": "Code snippet for a try/except/finally statement"
	},
	"try/except/else/finally": {
		"prefix": "try/except/else/finally",
		"body": [
			"try:",
			"\t${1:pass}",
			"except ${2:expression} as ${3:identifier}:",
			"\t${4:pass}",
			"else:",
			"\t${5:pass}",
			"finally:",
			"\t${6:pass}"
		],
		"description": "Code snippet for a try/except/else/finally statement"
	},
	"with": {
		"prefix": "with",
		"body": [
			"with ${1:expression} as ${2:target}:",
			"\t${3:pass}"
		],
		"description": "Code snippet for a with statement"
	},
	"def": {
		"prefix": "def",
		"body": [
			"def ${1:funcname}(${2:parameter_list}):",
			"\t\"\"\"",
			"\t${3:docstring}",
			"\t\"\"\"",
			"\t${4:pass}"
		],
		"description": "Code snippet for a function definition"
	},
	"def(class method)": {
		"prefix": "def(class method)",
		"body": [
			"def ${1:funcname}(self, ${2:parameter_list}):",
			"\t\"\"\"",
			"\t${3:docstring}",
			"\t\"\"\"",
			"\t${4:pass}"
		],
		"description": "Code snippet for a class method"
	},
	"def(static class method)": {
		"prefix": "def(static class method)",
		"body": [
			"@staticmethod",
			"def ${1:funcname}(${2:parameter_list}):",
			"\t\"\"\"",
			"\t${3:docstring}",
			"\t\"\"\"",
			"\t${4:pass}"
		],
		"description": "Code snippet for a static class method"
	},
	"def(abstract class method)": {
		"prefix": "def(abstract class method)",
		"body": [
			"def ${1:funcname}(self, ${2:parameter_list}):",
			"\t\"\"\"",
			"\t${3:docstring}",
			"\t\"\"\"",
			"\traise NotImplementedError"
		],
		"description": "Code snippet for an abstract class method"
	},
	"class": {
		"prefix": "class",
		"body": [
			"class ${1:classname}(${2:object}):",
			"\t\"\"\"",
			"\t${3:docstring}",
			"\t\"\"\"",
			"\t${4:pass}"
		],
		"description": "Code snippet for a class definition"
	},
	"lambda": {
		"prefix": "lambda",
		"body": [
			"lambda ${1:parameter_list}: ${2:expression}"
		],
		"description": "Code snippet for a lambda statement"
	},
	"if(main)": {
		"prefix": "__main__",
		"body": [
			"if __name__ == \"__main__\":",
			"    ${1:pass}"
		],
		"description": "Code snippet for a `if __name__ == \"__main__\": ...` block"
	},
	"async/def": {
		"prefix": "async/def",
		"body": [
			"async def ${1:funcname}(${2:parameter_list}):",
			"\t${3:pass}"
		],
		"description": "Code snippet for an async statement"
	},
	"async/for": {
		"prefix": "async/for",
		"body": [
			"async for ${1:target} in ${2:iter}:",
			"\t${3:block}"
		],
		"description": "Code snippet for an async for statement"
	},
	"async/for/else": {
		"prefix": "async/for/else",
		"body": [
			"async for ${1:target} in ${2:iter}:",
			"\t${3:block}",
			"else:",
			"\t${4:block}"
		],
		"description": "Code snippet for an async for statement with else"
	},
	"async/with": {
		"prefix": "async/with",
		"body": [
			"async with ${1:expr} as ${2:var}:",
			"\t${3:block}"
		],
		"description": "Code snippet for an async with statement"
	},
	"ipdb": {
		"prefix": "ipdb",
		"body": "import ipdb; ipdb.set_trace()",
		"description": "Code snippet for ipdb debug"
	},
	"pdb": {
		"prefix": "pdb",
		"body": "import pdb; pdb.set_trace()",
		"description": "Code snippet for pdb debug"
	},
	"pudb": {
		"prefix": "pudb",
		"body": "import pudb; pudb.set_trace()",
		"description": "Code snippet for pudb debug"
	},
	"add/new/cell": {
		"prefix": "add/new/cell",
		"body": "# %%",
		"description": "Code snippet to add a new cell"
	},
	"mark/markdown": {
		"prefix": "mark/markdown",
		"body": "# %% [markdown]",
		"description": "Code snippet to add a new markdown cell"
	}
}