JavaScript变量定义输出和类型显示

原创 2019-02-18 14:51:11 275
摘要:    <script type="text/javascript"> var x,y; x = 5; y = 10; document.write(x+y); document.write('<br/>'); va
    <script type="text/javascript">
		var x,y;
		x = 5;
		y = 10;
		document.write(x+y);
		document.write('<br/>');
		var str = "5";

		document.write(x==str);
		var number_var = 12.33;
		document.write('<br/>');
		document.write(number_var*3);
		document.write('<br/>');
		var data = {name:'Jack',age:13};
		document.write("姓名:"+data.name+" 年龄:"+data.age);
		document.write('<br/>');
		document.write(typeof(data));
		document.write('<br/>');
		document.write(typeof(number_var));
	</script>

结果如下:

QQ截图20190218144907.png

批改老师:天蓬老师批改时间:2019-02-18 15:07:32
老师总结:document.write('<br/>'); document.write(number_var*3); document.write('<br/>'); var data = {name:'Jack',age:13};, 以后,尽可能: console.log() 到控制台输出结果

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