abstract:var a=8,b=9;var c=a+b;var d=a*b;documet.write(typeof c,c,d);var c="php 中文网";documet.write(typeof c);documet.write(a>8 && b==9);
var a=8,b=9;
var c=a+b;
var d=a*b;
documet.write(typeof c,c,d);
var c="php 中文网";
documet.write(typeof c);
documet.write(a>8 && b==9);
Correcting teacher:天蓬老师Correction time:2018-11-08 11:02:38
Teacher's summary:作业完成的不错,这些代码是在浏览器中运行,最好加上<script>标签