2.3 自定义自己使用的代码片段
刷leetcode应该会很有用，比如引入一些链表node或者是图的定义等等。
比如写ROS的RVIZ输出的时候，能够有一个标准的代码片段的标准输出很有用。
比如写旋转矩阵或者类似的东西的时候
这里可以创建两种snippets的配置文件，第一种是global的全局snippets配置文件，适合一些注释等所有语言都适用的情况？
我主要是使用了第二种，针对某一种语言创建snippets配置文件
这里我主要为C++程序和Python程序创建了Code Snippet文件，我将我的代码文件template分享：
首先是Python的template模板(python.json文件)
Python
{
// 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"
// }
"prefixs for leetcode": {
"prefix": "prefix for leetcode",
"body": [
"from typing import List",
"from queue import Queue",
],
"description": "prefix for leetcode"
},
"main for leetcode": {
"prefix": "main for leetcode",
"body": [
"if __name__ == \"__main__\":",
" solution = Solution()",
" grid = [['1','1','0','0','0'],",
" ['1','1','0','0','0'],",
" ['0','0','1','0','0'],",
" ['0','0','0','1','1']]",
" result = solution.numIslands(grid)",
" print(f\"result = {result}\")",
" ",
],
"description": "main for leetcode"
},
"bfs template": {
"prefix": "bfs template",
"body": [
"def bfs(_grid: List[List[str]], _visited: List[List[bool]], _i: int, _j: int):",
" dirs = [[-1, 0], [1, 0], [0, -1], [0, 1]]",
" que = Queue(0) # 0意味着初始化无线长度的queue",
" que.put([_i, _j])",
" _visited[_i][_j] = True",
" while not que.empty():",
" cur = que.get()",
" curx = cur[0]",
" cury = cur[1]",
" for n in range(4):",
" nextx = curx+dirs[n][0]",
" nexty = cury+dirs[n][1]",
" if(nextx < 0 or nextx >= len(_grid) or",
" nexty < 0 or nexty >= len(_grid[0])):",
" continue",
" if(_visited[nextx][nexty] is False and _grid[nextx][nexty] == '1'):",
" que.put([nextx, nexty])",
" _visited[nextx][nexty] = True",
],
"description": "bfs template"
}
}其次是C++的template模板(cpp.json文件)
cpp
{
// Place your snippets for cpp 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"
// }
"sort algorithm with lambda": {
"prefix": "sort_lambda",
"body": [
"std::vector<int> v;",
"\/\/ 需要对v从大到小排列",
"sort(v.begin(), v.end(),[](int a, int b){return a>b;});"
],
"description": "Log output to console"
},
"prefixs for leetcode": {
"prefix": "prefix for leetcode",
"body": [
"#include <algorithm>",
"#include <iostream>",
"#include <unordered_set>",
"#include <vector>",
"#include <math.h>",
"#include <limits.h>",
"using namespace std;",
"struct TreeNode {",
" int val;",
" TreeNode *left;",
" TreeNode *right;",
" TreeNode() : val(0), left(nullptr), right(nullptr) {}",
" TreeNode(int x) : val(x), left(nullptr), right(nullptr) {}",
" TreeNode(int x, TreeNode *left, TreeNode *right)",
" : val(x), left(left), right(right) {}",
"};",
],
"description": "prefix for leetcode"
},
"main for leetcode": {
"prefix": "main for leetcode",
"body": [
"int main() {",
" // 示例二叉树",
" Solution solution;",
" vector<int> nums = {7, 1, 5, 3, 6, 4};",
" int result = solution.maxProfit(nums);",
" std::cout << \"result: \" << result << std::endl;",
"}",
],
"description": "main for leetcode"
}
}