推荐:java去除字符串空格几种做法超初我用的只是最简单的 网上搜索的都是什么replace( ,) 感觉很莫名其妙 你使用replaceAll( ,)方法时必须有返回值,类于 代码如下 String str = A B C D E; str = str.replaceAll( , ); 这样就删除空格了,你可能是用了replaceAll( , ) 方法,但没有返回值赋值 后来
if else在大部份编程语言中都是这样使用的,我们今天来简单的介绍一下关于jsp教程 中的if else 与多重条件判断。
<HTML>
< HEAD>
< TITLE>Using the if Statement</TITLE>
< /HEAD>
< BODY>
< H1>Using the if Statement</H1>
< %
int value = 10;
if(value > 0)
out.println("Absolute value of " + value + " = " + value);
%>
< /BODY>
< /HTML>
简单对比
<HTML>
< HEAD>
< TITLE>Using Compound Statements</TITLE>
< /HEAD>
< BODY>
< H1>Using Compound Statements</H1>
< %
int value = 10;
if(value > 0) {
out.println("The number was positive.");
out.println("Absolute value of " + value + " = " + value);
}
%>
< /BODY>
< /HTML>
if else
<HTML>
< HEAD>
< TITLE>Nested if Statements</TITLE>
< /HEAD>
< BODY>
< H1>Nested if Statements</H1>
< %
double value = 2;
if (value != 0) {
if (value > 0)
out.println("The result = " + (1 / value));
else
out.println("Sorry, we need a positive number.");
}
%>
< /BODY>
< /HTML>
多个条件if else
<HTML>
< HEAD>
< TITLE>Using an if-else Ladder</TITLE>
< /HEAD>
< BODY>
< H1>Using an if-else Ladder</H1>
< %
String day = "Friday";
if(day == "Monday")
out.println("It's Monday.");
else if (day == "Tuesday")
out.println("It's Tuesday.");
else if (day == "Wednesday")
out.println("It's Wednesday.");
else if (day == "Thurssday")
out.println("It's Thursday.");
else if (day == "Friday")
out.println("It's Friday.");
else if (day == "Saturday")
out.println("It's http://www.3lian.com/Saturday.");
else if (day == "Sunday")
out.println("It's Sunday.");
%>
< /BODY>
< /HTML>
以上是模板无忧网为您介绍的jsp if else语句使用方法,希望对您有所帮助。
分享:jquery模仿的a的title属性html代码如下: div class=wrap ul class=list clearfix lia href=UI设计师/a div class=show p所属部门:技术部/p p工作地点:郑州/p p招聘人数:21/p /div /li lia href=前端开发工程师/a div class=show p所属部门:技术部/p p工作地点:郑州/p p招聘人数:21/p /di