<!DOCTYPE HTML><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>返回值函數(shù)</title><script type="text/javascript">? function ?app2(x,y)? { var sum,x,y;? ? sum = x * y;? ? return sum;? }? var req1=app2(5,6);? var req2=app2(2,3);? var sumq=reg1+reg2;document.write("req1的值:"+req1+"<br/>");document.write("req2的值:"+req2+"<br/>");document.write(req1+"與"+req2+"和:"+sumq);</script></head><body></body></html>
javaScript進階篇 5-5 返回值 我的代碼運行后為什么瀏覽器一片空白啊
杰猛人
2015-05-29 16:40:13
