声明字符串类型变量
字符串是存储字符（比如 "Bill Gates"）的变量。字符串可以是引号中的任意文本。可以使用单引号或双引号。
请在预置代码中编写Javascript代码，使预览页面显示如下内容：
It's alright He is called 'Bill' He is called "Bill"
注：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
任务与要求
请定义字符串变量str1，使用双引号，赋值It's all right
请定义字符串变量str2，使用双引号，赋值He is called 'Bill'
请定义字符串变量str3，使用单引号，赋值He is called "Bill"
请使用document.getElementById(id)方法，并结合br换行标签，使id为demo的段落分行显示3个变量值
<!DOCTYPE html>
<html>
<body>
<p id="demo"></p>
<script>
</script>
</body>
</html>
qq_慕标6304929浏览 708回答 1
1回答
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莲_蓶濏__
<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <title></title> </head> <body> <p id="demo"></p> <script> for (var i = 1, str1 = "It's all right", str2 = "He is called 'Bill'", str3 = 'He is called "Bill"', oIdDmo = document.getElementById('demo'); i <= 3; i++) oIdDmo.innerHTML += window['str' + i] + '<br />'; </script> </body> </html>
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相关分类
JavaScript