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2024-09-27 02:06:13 +08:00
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历届学生/罗朝/2019-04-30/if.html Normal file
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<body>
<script>
// if 条件语句
// if () {
// }
// if () {
// }else {
// }
// var fenshu = 98;
// if (fenshu < 60) {
// console.log("不及格");
// } else if ( fenshu >= 60 && fenshu<=70) {
// console.log("一般");
// } else if (fenshu > 70 && fenshu<=80) {
// console.log("良好");
// } else {
// console.log("优秀");
// }
// if() {
// if() {
// }else {
// }
// }else {
// }
// 三目运算符
// var a = "张三"
// if(a == "张三") {
// console.log("你好张三");
// }else {
// console.log("你不是张三");
// }
// a == "张三" ? console.log("你好张三") : console.log("你不是张三")
// var b = "hello";
// switch (b) {
// case "张三":
// console.log("张三");
// break;
// case "李四":
// console.log("李四");
// break;
// case "hello":
// console.log("hello");
// break;
// default:
// console.log("都不满足");
// break;
// }
</script>
</body>
</html>