·您的位置: 首页 » 资源教程 » 编程开发 » JavaScript » 互联网页面浏览限制实现总结

互联网页面浏览限制实现总结

类别: JavaScript教程  评论数:0 总得分:0
1.文本框输入限制

  实现限制输入大、小写英文,数字,浮点小数,日期,中文,部分英文,部分中文等众多功能。直接加入到html代码中即可使用。



<script>

function regInput(obj, reg, inputStr)

{

var docSel = document.selection.createRange()

if (docSel.parentElement().tagName != "INPUT") return false

oSel = docSel.duplicate()

oSel.text = ""

var srcRange = obj.createTextRange()

oSel.setEndPoint("StartToStart", srcRange)

var str = oSel.text + inputStr + srcRange.text.substr(oSel.text.length)

return reg.test(str)

}

</script>
小写英文:<xmp style= "display:inline"> </xmp>

<input onkeypress = "return regInput(this, /^[a-z]*$/, String.fromCharCode(event.keyCode))"

onpaste = "return regInput(this, /^[a-z]*$/, window.clipboardData.getData(\'Text\'))"

ondrop = "return regInput(this, /^[a-z]*$/, event.dataTransfer.getData(\'Text\'))"

style="ime-mode:Disabled"

><br>
大写英文:<xmp style= "display:inline"> </xmp>

<input onkeypress = "return regInput(this, /^[A-Z]*$/, String.fromCharCode(event.keyCode))"

onpaste = "return regInput(this, /^[A-Z]*$/, window.clipboardData.getData(\'Text\'))"

ondrop = "return regInput(this, /^[A-Z]*$/, event.dataTransfer.getData(\'Text\'))"

style="ime-mode:Disabled">

<br>
任意数字:<xmp style="display:inline"> </xmp>

<input onkeypress = "return regInput(this, /^[0-9]*$/, String.fromCharCode(event.keyCode))"

onpaste = "return regInput(this, /^[0-9]*$/, window.clipboardData.getData(\'Text\'))"

ondrop = "return regInput(this, /^[0-9]*$/, event.dataTransfer.getData(\'Text\'))"

style="ime-mode:Disabled"

><br>
限2位小数:<xmp style="display:inline"> </xmp>

<input onkeypress = "return regInput(this, /^d*.?d{0,2}$/, String.fromCharCode(event.keyCode))"

onpaste = "return regInput(this, /^d*.?d{0,2}$/, window.clipboardData.getData(\'Text\'))"

ondrop = "return regInput(this, /^d*.?d{0,2}$/, event.dataTransfer.getData(\'Text\'))"

style="ime-mode:Disabled"

> 如: 123.12<br>


日  期:<xmp style="display:inline"> </xmp>

<input onkeypress = "return regInput(this, /^d{1,4}([-/](d{1,2}([-/](d{1,2})?)?)?)?$/,
String.fromCharCode(event.keyCode))"

onpaste = "return regInput(this, /^d{1,4}([-/](d{1,2}([-/](d{1,2})?)?)?)?$/,
window.clipboardData.getData(\'Text\'))"

ondrop = "return regInput(this, /^d{1,4}([-/](d{1,2}([-/](d{1,2})?)?)?)?$/,
event.dataTransfer.getData(\'Text\'))"

style="ime-mode:Disabled"

> 如: 2002-9-29<br>
任意中文:<xmp style="display:inline"> </xmp>

<input onkeypress = "return regInput(this, /^$/, String.fromCharCode(event.keyCode))"

onpaste = "return regInput(this, /^[u4E00-u9FA5]*$/, window.clipboardData.getData(\'Text\'))"

ondrop = "return regInput(this, /^[u4E00-u9FA5]*$/, event.dataTransfer.getData(\'Text\'))"

><br>
部分英文:<xmp style="display:inline"> </xmp>

<input onkeypress = "return regInput(this, /^[a-e]*$/, String.fromCharCode(event.keyCode))"

onpaste = "return regInput(this, /^[a-e]*$/, window.clipboardData.getData(\'Text\'))"

ondrop = "return regInput(this, /^[a-e]*$/, event.dataTransfer.getData(\'Text\'))"

style="ime-mode:Disabled"

> 范围: a,b,c,d,e<br>
部分中文:<xmp style="display:inline"> </xmp>
<script language=javascript>

function checkChinese(oldLength, obj)

{

var oTR = window.document.selection.createRange()

var reg = /[^一二三四五六七八九十]/g

oTR.moveStart("character", -1*(obj.value.length-oldLength))

oTR.text = oTR.text.replace(reg, "")

}

</script>

<input onkeypress="return false" onkeydown="setTimeout(\'checkChinese(\'+this.value.length+\',\'+this.uniqueID+\')\',
1)"

onpaste = "return regInput(this, /^[一二三四五六七八九十]*$/, window.clipboardData.getData(\'Text\'))"

ondrop = "return regInput(this, /^[一二三四五六七八九十]*$/, event.dataTransfer.getData(\'Text\'))"

> 范围: 一二三四五六七八九十<br>

2.不能展开右键,不能全选,不能复制的实现
<body oncontextmenu="window.event.returnValue=false"

onkeypress="window.event.returnValue=false"

onkeydown="window.event.returnValue=false"

onkeyup="window.event.returnValue=false"

ondragstart="window.event.returnValue=false"

onselectstart="event.returnValue=false">
...

</body>


3.禁止页面正文内容被选取
<body oncontextmenu="return false" ondragstart="return false"
onselectstart ="return false" onselect="document.selection.empty()"
oncopy="document.selection.empty()" onbeforecopy="return

false"onmouseup="document.selection.empty()">


4.避免别人把网页放在框架中
<script language=“javascript”><!--if (self!=top){top.location=self.location;}-->< /script>


5.禁示查看源代码
<frameset>

<frame src="你要保密的文件的URL">

</frameset>


6.关闭输入法
<input style="ime-mode:disabled">


7.禁止图片下载
  在<body......>这里的最后加入:
oncontextmenu="return false" ondragstart="return false" onselectstart="return
false" scroll="auto"


8.禁止缓存
  在HEAD里加入:
<meta http-equiv="Expires" CONTENT="0">

<meta http-equiv="Cache-Control" CONTENT="no-cache">


<meta http-equiv="Pragma" CONTENT="no-cache">
-= 资 源 教 程 =-
文 章 搜 索
关键词:
类型:
范围:
纯粹空间 softpure.com
Copyright © 2006-2008 暖阳制作 版权所有
QQ: 15242663 (拒绝闲聊)  Email: faisun@sina.com
 纯粹空间 - 韩国酷站|酷站欣赏|教程大全|资源下载|免费博客|美女壁纸|设计素材|技术论坛   Valid XHTML 1.0 Transitional
百度搜索 谷歌搜索 Alexa搜索 | 粤ICP备19116064号-1