document.write(mystr+mychar+munum);
var mystr="我是";
var mychar="JavaScript";
var mynum="的忠实粉丝";
document.write(mychar+"<br>");
document.write(mystr+mychar+munum);
这样写怎么不输出呢?哪里有问题呢
var mystr="我是";
var mychar="JavaScript";
var mynum="的忠实粉丝";
document.write(mychar+"<br>");
document.write(mystr+mychar+munum);
这样写怎么不输出呢?哪里有问题呢
2017-05-08
举报