<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>无标题文档</title>
</head> <body>
</body>
</html>
<script>
//3377加减乘除 = 24 // 3+""+3+""+7+""+7 == 24
var fh = ["+","-","*","/","%"];
for(var i = 0; i<fh.length; i++){
for(var j = 0 ; j<fh.length; j++){
for(var k = 0 ; k<fh.length; k++){
if(eval(3+fh[i]+3+fh[i]+7+fh[i]+7) == 20){
console.log(3+fh[i]+3+fh[i]+7+fh[i]+7 +"=24");
console.log(i);
}
}
}
}
</script>