（九）javaScript的基本使用

<script type="text/javascript">

				var userName;

				var userAge;

				function interInfo(){

					userName=prompt("请输入您的姓名");

					userAge=prompt("请输入您的年龄");

				}

				function showInfo(){

					document.write("您的名字是"+userName+"您的年龄是"+userAge);

				}

		</script>

	</head>

	<body>

		<p>信息登记系统</p>

		<button onclick="interInfo();">填写个人信息</button>

		<button onclick="showInfo();">显示信息</button>

	</body>

结果：

aaarticlea/png;base64,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" alt="" />aaarticlea/png;base64,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" alt="" />aaarticlea/png;base64,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" alt="" />

aaarticlea/png;base64,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" alt="" />aaarticlea/png;base64,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" alt="" />

解析： prompt(msg,defaultText)参数

	描述
msg	可选。要在对话框中显示的纯文本（而不是 HTML 格式的文本）。
defaultText	可选。默认的输入文本。

<script type="text/javascript">

				function jisuan(){

					var price=document.jisuanqi.price.value;

					var mount=document.jisuanqi.mount.value;

					var total=parseFloat(price)*parseFloat(mount);

					document.jisuanqi.total.value=total;

				}

		</script>

	</head>

	<body contextmenu="">

		<p>竞拍系统</p>

		<form name="jisuanqi">

			竞拍价格：<input type="text"  name="price"/><br/>

			购买数量：<input type="text"  name="mount"/><br/>

			预计总价：<input type="text" name="total" readonly="readonly" /><br/>

				<input type="button" value="计算总价" onclick="jisuan()"/>

		</form>

	</body>

结果：

aaarticlea/png;base64,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" alt="" /> 解析：获取表单中输入的数据： document.表单名.表单元素名.value；

<script type="text/javascript">

				function jisuan(){

					var grade;  //不同支付方式的折扣

					var f=document.jisuanqi.pay.value;  //拿到select表单元素的值

					var price=document.jisuanqi.price.value;

					var mount=document.jisuanqi.mount.value;

					switch(parseInt(f)){

					case 1: grade=0.8;break;

					case 2: grade=0.9;break;

					case 3: grade=1;break;

					default: alert("重新选择支付方式");

					}

					var total=parseFloat(price)*parseFloat(mount)*grade;

					document.jisuanqi.total.value=total;

				}

		</script>

	</head>

	<body contextmenu="">

		<p>竞拍系统</p>

		<form name="jisuanqi">

			竞拍价格：<input type="text"  name="price" /><br/>

			购买数量：<input type="text"  name="mount"/><br/>

			支付方式:<select name="pay">

					<option  value="1">支付宝/微信</option>

					<option value="2">银行卡</option>

					<option value="3">充值卡</option>

				</select><br/>

			预计总价：<input type="text" name="total" readonly="readonly" /><br/>

				<input type="button" value="计算总价" onclick="jisuan()"/>

		</form>

	</body>

结果：

aaarticlea/png;base64,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" alt="" /> 解析：表单元素中的value 属性可设置或返回密码域的默认值。而在option元素中。value属性设置或返回的是自定义的值，这个自定义的值与用户选择的值一对一对应。

<style type="text/css">

	.aa{

	width:50px;

	height:20px;

	}

</style>

<script>

	function jisuan(op){

		var sum1=document.jisuanqi.num1.value;

		var sum2=document.jisuanqi.num2.value;

		if(op=="jia"){

			var result=parseFloat(sum1)+parseFloat(sum2);

		}else if(op=="jian"){

			var result=parseFloat(sum1)-parseFloat(sum2);

		}else if(op=="cheng"){

			var result=parseFloat(sum1)*parseFloat(sum2);

		}else if(op=="chu"){

			var result=parseFloat(sum1)/parseFloat(sum2);

		}

		document.jisuanqi.result.value=result;

	}

</script>

</head>

<body>

	<p>小型计算器</p>

	<form name="jisuanqi">

	第一个数<input type="text" name="num1" /><br/>

	第二个数<input type="text" name="num2" /><br/><br/>

		<input type="button" value="+" name="plus" class="aa" onclick="jisuan('jia');"/>

		<input type="button" value="-" name="jian" class="aa" onclick="jisuan('jian');"/>

		<input type="button" value="*" name="cheng" class="aa" onclick="jisuan('cheng');"/>

		<input type="button" value="/" name="chu" class="aa" onclick="jisuan('chu');"/><br/><br/>

		计算结果<input type="text" name="result"/>

	</form>

</body>

aaarticlea/png;base64,iVBORw0KGgoAAAANSUhEUgAAASAAAADBCAIAAADgjvpEAAALw0lEQVR4nO3dz28cZx3H8fkr6gvIx0pQKUcjFcmHHpzAwerJqoSwkEDOocJJ+sNNQgpC0D1VEc16bRzbazvEGwuEBaExASRLHLpt4mZbJyUC4W5LSDYViTYqlJzIcEhib2bn+c7MzvP1PDN+v7SH3dmZZ7559P3kmfWPsfc5ADVe1gUARUbAAEUEDFBEwABF3oXfXeDBg4fSw/MBqCFggCICBigiYIAiAgYoImCAIgIGKCJggCICBigiYIAiAgYoImCAIgIGKCJggCICBigiYIAiAgYoShYwz0sbyDgjCPuEvpW+KkCJzYB5BsIISQMTOrJwxjj7R/2jgd7ZX8E6+1jeGH9LbyPH2ZOAQVVuAtZbEggYspV9wBKdxXQVarre4xIR2UrW7sL//XLTWwxYbwcGdiBX2B29B6z7ZWCjvIJ1JzDOuiTvFj9gpuIBu1IFrHtLZAdHjmA6MPKt7rPHJ4wJpJHgv/zul/IOoW+lD1jPUTEVAOhJG7DOjYniJ2y0soIFtncvbsI4gC3J+lVISMzw9HyW7bcSrWBClogZdoGFH0rqXhwSXcIlClj8Q2Lmh5hBlf3vgyXdv3sBNOUwPtNRwkZAgxMBC+xmZQXr3t4ZsEQVAj2L217d60z3Dj2sMKFjyk0f+i4Bg5sStNeu9aIc46TbuUREhmgvQBEBAxQRMEARAQMUETBAEQEDFBEwQBEBAxQRMEARAQMUETBAEQEDFBEwQBEBAxQRMEARAQMUETBAUWEDtgKsrGTdhglvPCpstCLmyHFu4+HC5CJbLvRAdMC672Ah38QmVTXxbncjPNnmwuQiWy70QLKGNm20U0qMe8d37iPfHMqFyUW2XOiBuPdvCu1+pbUrctjQS8TAiurC5CJbLvRA4ktEjYvDOJ+phAJCwxmc3GZteLjWevzqfmNqdKDf87y+p4fGa9fvW/lnwDE5CFhwb4UVzDRI6PbQS8TogDXXxgY8bydgzerQwMRay/d9v1kb6RtZbfkoHgIWMaDpZeCJHLD2emmwf3BiYnQnYK3Vkb5S49ER99fHvfF11rACykHA4l8iRu7ZfV0X/8rQN6TIN69mOwFr1K+3fb9e2glY5/NHr5ryPCCP8hEw4aV1ccaPvHR8KDi55oC1asNeqd5bwXAZAYs4XeAtef30CRielI+Axb9KtFBNki/Qy+GPHzAuEYsqBwF7Ytd4n5pSVZPkDxf1HjC+yLE35Clg3ddgndutVRMVsO4vZpjKkwLmN6tD+8bXWr7v32/WRvpGV9vpa4dz8hGw0LY25S1tNT39RczQesSA+e36yZGn+zzP8/qHxteaaWqGs5wOWOhHLOEjkJ1qYnwGi/NVe9+NyUW2XOiBVN9oti7yq4jdO5tWMxcmF9lyoQd0A5MhFyYX2XKhBwgYCsuFHiBgKCwXeqDIAQOybkMChkLLug256Q2Ky4UeSPyziKaNdqrhpjewx4UeSNbQpo12SuGmN7DKhR6QvrHb/VL++Vo/yS9oCqeL8/Mc8nl9NyYX2XKhB6z9RnOqIlRvelMvdeze8fOIKLocBCy4dw5vetOqDfPrXnsTAduNm940Sn0T/L7ynpSDgOldIoYebroy9A0p8s2r2ePJba2ODFabPZeJHMtHwISX1sUZP/LS8aHHk9so9Q2OjA71e/zq155DwCJOF3hLWD+NAWuvjXkDJx/dHqC9Orb9HMWXj4DpXSWGni7+DnL4Qye3WRveR8L2jBwE7Ild431qSlWN3k1vfN/3/WZ1kA9ke0eeAtZ9Dda53Y+31kUuepEB87q+mGEq79HkXp8a2Dex/uieNs3qMN8H20PyEbDQtjblLW01Cje92b6/Tf/A6FSD20ftIU4HLHS1ET4C2amGm97AHhd6INU3mq2Trx4jLws7t7swuciWCz2gG5gMuTC5yJYLPUDAUFgu9AABQ2G50ANFDhiQdRsWN2CACwgYoIiAAYoIGKCIgAGKCBigiIABiggYoIiAAYoIGKCIgAGKCBigiIABiggYoIiAAYoIGKCIgAGKjAG7euPB8ru+U4+rNx7s5tQA6YUH7OqNB4fPfHH09OZrMx868jh6evPwmS9MGdva2jp37txZZ9Rqta2tLdOkU20acrWuCQ/Y2fqD12Y+/K9jjp7e/MU7/wsteHl5OevqgpaXl02TTrUpCdW6xhiwV6cb/3HMxM8/MAVsaWkp6+qClpaWTJNOtSkJ1brGGLBXpq782zGvTjdMAVtcXMy6uqDFxUXTpFNtSkK1rpEC9rljhIAtLCxkXV3QwsKCadKpNiWhWtcYA/Zy5f17jnll6oopYNVqNevqgqrVqmnS7VX717lv/vCPNgbalWrvffqr73y9spl+HKFa10gBaztGCNj8/HzW1QXNz8+bJt1Kta3zh547+PrBZ194/Y0Xnnvzz45X22632+3W+YPPvJG20nZbrNY1xoC9NLlx14aLJ7xvnP6LlaFerrxvCtjc3JyVU1g0NzdnmnRL1d78+OJPn33qqefL9Zupx9Kv9u7duxdPfPnERRsDCdW6RgrYHRt+f8I7MPORlaGEgM3Ozlo5hUWzs7OmSbdU7dbS6OjKR1dOPf/93/zT/Wrv3Fn/yTNj6Su9c0es1jVSwP5lw9oPvAMz16wMJQfMyikskls26+qCdqHaazMHRs/93cpQRQjYkfLlz9K4cLzrLzMfv5BqxM9emtwwBWxmZibd2PbNzMyYJn1PVvu32rf3T6frqW1Cta6RAnbbhrePe/unN60MJQcs/fib0/u3/y94O/Vocsumr9Yu9Wo/+fX3vvrjP1kY6PZtsVrXGAN2+NSlWzacP+YNVT6wMtSR8mVTwKanp62cwqLp6WnTpO/Fas8f+9Kx8xbGuXXrllita6SA3bTht0e9oUrDylBywKycwiK5ZbOuLki72j/86Cvf/eVW+nEeKkLADr313g3HHD51yRSwSqWSdXVBlUrFNOl7r9p33vzat85cs1DnQ0K1rpEC9g/HyAHLuroguWWzri6oMNW6xhiw8Z+9+6ljDr31nilgk5OTWVcXNDk5aZp0qk1JqNY1UsCajhECVi6Xs64uqFwumyadalMSqnWNdIn4sWPkS8SsqwuSL7qyri6oMNW6xnjLgBer946ULx8+dcmRx5Hy5Rer90y3DNjY2Jiamio7o1KpbGxsmCadatOQq3WNdNObs3W3Htz0BrnDbdsARQQMUETAAEUEDFBEwABFBAxQRMAARQQMUETAAEUEDFBEwABFBAxQRMAARQQMUETAAEUEDFBEwABFhQ3YCrCyknUb9hQwzzMeFfqWsH9vh8ThwuQiWy70QEQfJ+3+wN9TCd0YODzlKUzDujC5yJYLPRC9UHT3uqn7OxMlb4w/lPyW6bnvxuQiWy70gLWA9XZRJ6xycVY8AgaBCz1g/zNY+qj0fIrO3YKT26wND9da2y/rpY7jOt9AcRQzYDEPFLIR/xRxV7Dm2tjAEzlq1YaHa02hVBSA0wELdH/MdSnRCrZ9iHy4vH/oc79jctvrpcH+wYmJ0c6ANUp9E3V5ZpB7TgdsZ49el5eUQwmDxEnvTsAa9ett36+XOgLWWh0ZrDaTnhk5U8yAxV/BekiX39sloh8IWKPUNzgyOtTveV7/0Phas4cy4L5iBizmUKHZi3OJGPN0UsDaa2PewMnGoxerY9vPUSjFDFiaFUzYEjly4CziCvaEZm14HwkrogIGrOdDkh64veKZ9kkQsOogH8gKKU8B88yfdrY3Jlphug8MHdl0LtOTbVLArk8N7JtYbz980awO832wYspNwCIv7boPibOlh4vGwCGB550v5RWsXT858nSf53n9A6NTjbb8z0FO5SZgkVsi3425UVjuutMojOC7MbnIlgs9sEs/yWH9M1jkuy5MLrLlQg/0ErBccGFykS0XeoCAobBc6AEChsJyoQeKHDAg6zYsbsAAFxAwQBEBAxQRMEARAQMUETBAEQEDFBEwQBEBAxQRMEARAQMUETBAEQEDFBEwQBEBAxQRMEARAQMUETBA0f8BUb9WKwPNW5YAAAAASUVORK5CYIIA" alt="" />

<script type="text/javascript">

		function nameOver(){

			if(document.f.userName.value=="请输入3~8个字符"){  //鼠标移到输入框，清空

				document.f.userName.value="";

			}

		}

		function nameOut(){

			if(document.f.userName.value==""){  //鼠标移开输入框，如果没有输入，提醒输入

				document.f.userName.value="请输入3~8个字符";

			}

		}

		function butOver(){

			document.f.button.value="悬浮";

		}

		function butOut(){

			document.f.button.value="离开";

		}

	</script>

</head>

<body >

<form name="f">

       用户名: <input type="text" value="请输入3~8个字符" name="userName" onMouseOver="nameOver()" onMouseOut="nameOut()"/><br/>

       密 码:<input type="password" name="userPass" /><br/>

      <input type="button" value="正常" onMouseOver="butOver()" name="button"  onMouseOut="butOut()"/>

</form>

</body>

结果：

解析：

用图片代替提交按钮

<script type="text/javascript">

	function submit(){

	document.f.submit();

	}

	</script>

</head>

<body >

	<form name="f">

		 用户名：<input type="text"/><br/>

		密  码：<input type="password" /><br/>

		确认密码：<input type="password" /><br/>

		<input type="image" src="../images/zhuce.jpg" onclick="submit()"/>

	</form>

</body>

结果：

解析：

1. eclipse开发工具下，图片最好放在

相应的文件夹里。

2.表单提交有两种方法：（1） type="submit" 点击按钮即可提交（2）调用表单的submit（）方法。

（九）javaScript的基本使用的更多相关文章

javaScript高级教程(九) ------javascript对象字面量--------困扰已久的问题
在编程语言中,字面量是一种表示值的记法.例如,"Hello, World!" 在许多语言中都表示一个字符串字面量(string literal ),JavaScript也不例外. ...
JavaScript学习总结(九)——Javascript面向(基于)对象编程
一.澄清概念 1.JS中"基于对象=面向对象" 2.JS中没有类(Class),但是它取了一个新的名字叫“原型对象”,因此"类=原型对象" 二.类(原型对象)和 ...
JavaScript学习总结——转
JavaScript学习总结(一)——JavaScript基础 JavaScript学习总结(二)——逻辑Not运算符详解 JavaScript学习总结(三)——逻辑And运算符详解 JavaScri ...
JavaScript知识点的总结
一.Javascript的含义是一种解释性的语言,主要给网页添加各色各样的动态功能,同时为用户提供浏览效果. 二.JavaScript的主要特点 1. 简单性 2. 动态性 3. 安全性 4. 跨平 ...
javascript基础语法及使用
前几年自学过JavaScript,由于从事安卓开发,就放弃了对js的学习,今天又捡起来重新学习了下,希望对大家有所帮助. 首先介绍下什么是JavaScript. JavaScript 是互联网上最流行 ...
JavaScript基础：
一. JavaScript概述 JavaScript一种直译式脚本语言,是一种动态类型.弱类型.基于原型的语言,内置支持类型. document.write("<h1>这是一个标 ...
h5面试题集合
一.闭包的理解: 使用闭包主要是为了设计私有的方法和变量.闭包的优点是可以避免全局变量的污染,缺点是闭包会常驻内存,会增大内存使用量,使用不当很容易造成内存泄露. 闭包三个特性: 1.函数嵌套函数 ; ...
Html5+js测试题【完整版】
一.闭包的理解:使用闭包主要是为了设计私有的方法和变量.闭包的优点是可以避免全局变量的污染,缺点是闭包会常驻内存,会增大内存使用量,使用不当很容易造成内存泄露.闭包三个特性: 1.函数嵌套函数 ; 2 ...
从头开始学JavaScript (九)——执行环境和作用域
原文:从头开始学JavaScript (九)--执行环境和作用域一.执行环境:定义了变量或者函数有权访问的其他数据,决定了它们各自的行为.每个执行环境都有与之关联的变量对象. 变量对象:保存着环境中 ...
Javascript多线程引擎(九)
Javascript多线程引擎(九)--垃圾回收垃圾回收这个话题对Programer来说是非常老旧的话题, 从手动的malloc/free 到半自动的引用计数再到全自动的 mark-sweep ...

随机推荐

.hive命令的3种调用方式以及源码
安装 hive后在命令行如输入 Hive -h -后面随便输入.让让他报错进入命令提示界面 -d 定义一个变量两种形式 -d A=B or --define A=B -e 执行sql语句 hi ...
Redhat6.4下配置本地yum
一.准备工作1. Linux安装盘插入光驱 2. 挂载光驱 [root@localhost ~]# mount /dev/cdrom /mnt/ mount: block device /dev/s ...
spring EL表达式，null-safe表达式
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns:xsi="http://ww ...
DotNet加密方式解析--数字签名
马上就要过年回村里了,村里没有wifi,没有4G,没有流量,更加重要的是过几天电脑就得卖掉换车票了,得赶紧写几篇博客. 数据安全的相关技术在现在愈来愈变得重要,因为人们对于自身的信息都有一种保护的欲望 ...
Intellij IDEA 建立文件夹目录问题
问题: NEW一个package常出现文件夹层次问题解决: 1.选中当前文件夹(要在该文件夹下添加): 2.右击此处: 3.添加即可. 链接:http://stackoverflow.com/que ...
微信前端面试题----js实现LazyMan
这是微信小程序的一道面试题,题目是这样的: 实现一个LazyMan,可以按照以下方式调用:LazyMan("Hank")输出:Hi! This is Hank! LazyMan(& ...
sqlcmd命令导入大容量的SQL本地文件至SQL server 2008
由于开发工作在测试环境,需要构造测试数据,经常遇到100+M大小的*.sql文件需要导入到测试库的情况,由于SSMS里对导入文件的大小有限制: 会出现上图的报错!上网查了下,超过80M的文件是不能在S ...
重写titleView
在一些特定的情况下不能使用原有的titleView需要重写titleView代码如下 #import "TitleView.h" @implementation TitleView ...
event.target的第一次
今天在学习其他人代码的时候见到了event.target.nodeName,event.target.dataset.刚开始是一头雾水,便google一下.发现大多数给出的词条都是有关jQuery事件 ...
slf4j+log4j的使用
maven依赖引入 <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j1 ...

（九）javaScript的基本使用

用图片代替提交按钮

（九）javaScript的基本使用的更多相关文章

随机推荐

热门专题