<%@LANGUAGE="JAVASCRIPT" CODEPAGE="936"%><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312" /><title>无标题文档</title><head><script type="text/javascript" >function check(){var score=formal.textfield.value;if(score>=90 && score<100){document.write("A");}else if(score>=75 && score<90){document.write("B");else if(score>=60 && score<75){document.write("C");}else{document.write("D");}}</script></head><body><form id="formal" name="formal" method="post" action=""><p>请输入你的分数： <label> <input type="text" name="textfield" /> </label></p><input type ="button" name="button" value="按钮" onclick="check()"/></p></form></body></html>
1 回答
李晓健
TA贡献1036条经验 获得超461个赞
function check(){
var score=formal.textfield.value;
if(score>=90 && score<100)
{document.write("A");}
else if(score>=75 && score<90)
{document.write("B");}//这里少一个 }
else if(score>=60 && score<75)
{document.write("C");}
else{document.write("D");}
}看注释
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