如果JavaScript 遇到 break 关键词,它会跳出 switch 代码块。此举将停止代码块中更多代码的执行以及 case 测试。如果找到匹配,并完成任务,则随机中断执行(break)。无需更多测试。break 能够节省大量执行时间,因为它会"忽略" switch 代码块中的其他代码的执行。注意: 如果省略 break 语句,即使计算结果与
switch 语句是 JavaScript 的"条件"语句的一部分,用于根据不同的条件执行不同的操作。使用 switch 选择要执行的许多代码块之一。这是长的嵌套 if/else 语句的完美解决方案。switch 语句计算表达式。然后将表达式的值与结构中每个 case 的值进行比较。如果匹配,则执行关联的代码块。
❮PreviousJavaScriptStatementsNext❯ Example Execute a block of code based on user input: vartext; varfruits = document.getElementById("myInput").value; switch(fruits) { case"Banana": text ="Banana is good!"; break; case"Orange": ...
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switch-case语句的一般表达形式为： switch〈选择判断量〉 Case 选择判断值1 选择判断语句1 case 选择判...
问嵌套的条件语句( if，switch then if then)EN作为网络安全初学者，会遇到采用Go语言开发的恶意样本。
if you can reprogam all your game in html5/javascript so you can then switch in pure html/js mode. but if it's not the case so just follow what I said above Votes Upvote Translate Translate Report Report Reply byebyeflashplayer AUTHOR Comm...
case 1: echo "Number 1"; break; case 2: echo "Number 2"; break; case 3: echo "Number 3"; break; default: echo "No number between 1 and 3"; } ?> W3Schools' Online Certification Program is the perfect solution for busy professionals who need to balance work, family, and career...
case sum<50: alert("failed"); break; default: alert("there is errorrrr"); } Use switch with greater than javascript Code Example, switch (true) { case (0 <= val && val < 1000): /* do something */ break; case (1000 <= val && val < 2000): /* do something */ break; case...
intday=4;switch(day){case1:System.out.println("Monday");break;case2:System.out.println("Tuesday");break;case3:System.out.println("Wednesday");break;case4:System.out.println("Thursday");break;case5:System.out.println("Friday");break;case6:System.out.println("Saturday");break;case7:Syste...