<html>
<body>
<p>单击按钮以演示 toString() 方法将布尔值转换为字符串:</p>
<button onclick="myFunction()">试一试</button>
<p id="demo"></p>
<script>
function myFunction() {
var bool = true;
var x = bool.toString()
document.getElementById("demo").innerHTML = typeof x;
}
</script>
</body>
</html>