JavaScript Javascript IF语句

Posted

tags:

篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了JavaScript Javascript IF语句相关的知识，希望对你有一定的参考价值。

<html>
	<head>
		<script language="javascript">
			
			var secret_password = "jasmine";
			var entered_password = prompt("please enter password", " ");

			if (entered_password != secret_password)
			{
				document.write("incorrect");
			}
			else
			{
				document.write("welcome");
			}

		</script>
	</head>
	<body>

	</body>
</html>



<html>
	<head>
		<script language="javascript">
			
			var secret_password = "jasmine";
			var usernmae = "password";
			var entered_password = prompt("please enter password", " ");
			var entered_username = prompt("please enter username", " ");

			if ((entered_password == secret_password) && (entered_username == username))
			{
				document.write("correct");
			}
			else
			{
				document.write("try again");
			}

		</script>
	</head>
	<body>

	</body>
</html>



<html>
	<head>
		<script language="javascript">
			
			var admin = admin
			var developer = "mike";
			var user = "user";
			
			var entered_password = prompt("please enter password", " ");

			switch (entered_password)
			{
				case "admin": alert("you are admin"); break
				case "mike": alert("you are a developer"); break
				case "user": alert("you are a user"); break
				default: alert("password Incorrect!!"); break
			}

		</script>
	</head>
	<body>

	</body>
</html>

以上是关于JavaScript Javascript IF语句的主要内容，如果未能解决你的问题，请参考以下文章

JavaScript

Javascript Statement（上）

利用JavaScript实现不同时间 显示不同问候语

输入框聚焦隐藏提示语

“云”端的语雀：用 JavaScript 全栈打造商业级应用

“云”端的语雀：用 JavaScript 全栈打造商业级应用