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<!DOCTYPE html>
<html>
<body>
​
<h2>JavaScript 字符串</h2>
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<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>
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<p id="demo"></p>
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<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>
​