一、JavaScript条件语句
1.if...else
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<script>
var i=11;
if (i==10){
document.write("yeleven");
}else{
document.write("yeleven2");
}
</script>
</body>
</html>2.switch
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<script>
var i=5;
switch(i){
case 1:
document.write("i=1");
break;
case 2:
document.write("i=2");
break;
default:
document.write("条件不满足case");
break;
}
</script>
</body>
</html>原文：http://11317783.blog.51cto.com/11307783/1791880