vscode怎么断点调试js项目

{             "name": "使用本机 Chrome 调试",             "type": "chrome",             "request": "launch",              "file": "${workspaceRoot}/index.html",         //  "url": "http://mysite.com/index.html",          //使用外部服务器时,请注释掉 file, 改用 url, 并将 useBuildInServer 设置为 false "http://mysite.com/index.html             "runtimeExecutable": "C:Program Files (x86)GoogleChromeApplicationchrome.exe",              // 改成您的 Chrome 安装路径             "sourceMaps": true,             "webRoot": "${workspaceRoot}",         //  "preLaunchTask":"build",             "userDataDir":"${tmpdir}",             "port":5433         }