<!DOCTYPE HTML> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>返回值函数</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=req1+req2; document.write("req1的值:"+req1+"<br/>"); document.write("req2的值:"+req2+"<br/>"); document.write(req1+"与"+req2+"和:"+sumq); </script> </head> <body> </body> </html>
<!DOCTYPE HTML> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>返回值函数</title> <script type="text/javascript"> function app2(x,y) { var sum,x,y; sum = x * y; return sum; } req1 = app2(5,6); req2 = app2(2,3); sumq = req1 + req2; document.write("req1的值:"+req1+"<br/>"); document.write("req2的值:"+req2+"<br/>"); document.write(req1+"与"+req2+"和:"+sumq); </script> </head> <body> </body> </html>
不用var,还有空格也要注意。。。
我也是,奇怪的是代码都对,却不能通过。