安装 npm install -g typescript
编译 tsc helloworld.ts
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
//注意设置编码格式
<title></title>
</head>
<body>
</body>
<script type="text/javascript" src="./hellots.js"></script>
</html>
hellots.ts
function greeter(person: string) {
return "Hello, " + person;
}
let user = "Jane User";
