<html>
<head>
<title>js</title>
<script>
function check(){
var score;
score=prompt("请输入您的分数：");
if (score>=90){
alert("您的成绩优秀！");
}
else if(score>=70){
alert("您的成绩良好！")
}
else if(score>=60){
alert("您的成绩及格！")
}
else if(0<score<59){
alert("您还需要努力哦！")
}
else if(score<0){
alert("请输入正确的分数！")
}
}
</script>
</head>
<body>
<input type="button" name="click" value="点我查看" onClick="check()">
</body>
</html>
2020-04-02
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>js</title> <script> function check(){ var score; score=prompt("请输入您的分数："); if (score>=90){ alert("您的成绩优秀！"); } else if(score>=70){ alert("您的成绩良好！") } else if(score>=60){ alert("您的成绩及格！") } else if(score>0&&score<59){ alert("您还需要努力哦！") } else if(score<0){ alert("请输入正确的分数！") } } </script></head><body><input type="button" name="click" value="点我查看" onClick="check()"></body></html>举报
