声明（创建）字符串
声明（创建）字符串

<!DOCTYPE html>
<html>
<body>
 
<h2>JavaScript 字符串</h2>
 
<p>您可以在字符串内使用引号，只要这些引号与包围字符串的引号不匹配：</p>
 
<p id="demo"></p>
 
<script>
var answer1 = "It's alright";             // 双引号内的单引号
var answer2 = "He is called 'Bill'";    // 双引号内的单引号
var answer3 = 'He is called "Bill"';    // 单引号内的双引号
 
document.getElementById("demo").innerHTML =
answer1 + "<br>" + 
answer2 + "<br>" + 
answer3;
</script>
 
</body>
</html>