Visual Studio Code 1.14如何配置HTML页面运行任务？

新版本的Visual Studio Code 1.14如何配置HTML页面运行任务？{
// See https://go.microsoft.com/fwlink/?LinkId=733558
// for the documentation about the tasks.json format
"version": "2.0.0",
"tasks": [
{
"taskName": "echo",
"command": "echo Hello",
"type": "shell"
}
]
}

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