html运行实例（eg_js_variables_types）-搜寻教程库

代码示例：（标识：eg_js_variables_types）

<!DOCTYPE html>
<html>
<body>

<h1>JavaScript 变量</h1>

<p>字符串用引号包围。</p>
<p>数值不用引号包围。</p>

<p id="demo"></p>

<script>
var pi = 3.14;
var person = "Bill Gates";
var answer = 'How are you!';

document.getElementById("demo").innerHTML =
pi + "<br>" + person + "<br>" + answer;
</script>

</body>
</html>