摘要：<script type ="text/javascript"> // document.write('万万'); var x= 3, y=6; z=
<script type ="text/javascript">
// document.write('万万');
var x= 3, y=6;
z= x+y;
document.write(z+'<br/>');
document.write(x+=y);// x=x+y
document.write('<br/>');
document.write(x-=y);// x=y-x
document.write('<br/>');
document.write(x*y);
document.write('<br/>');
document.write(x/y); //x= x/y
document.write('<br/>');
document.write(x/=y);
</script>
批改老师：灭绝师太批改时间：2018-11-07 09:03:45
老师总结：可以将变量的多种类型都测试一下，体会一下
