<!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; document.write("req1的值:"+req1+"<br/>"); document.write("req2的值:"+req2+"<br/>"); document.write(req1+"与"+req2+"和:"+sumq); } req1=app2(5,6) req2=app2(2,3) sumq=req1*req2</script></head><body></body></html>
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