发布于 2016-10-17 04:08:27 | 83 次阅读 | 评论: 0 | 来源: 网友投递
这里有新鲜出炉的Javascript教程，程序狗速度看过来！
JavaScript客户端脚本语言
Javascript 是一种由Netscape的LiveScript发展而来的原型化继承的基于对象的动态类型的区分大小写的客户端脚本语言，主要目的是为了解决服务器端语言，比如Perl，遗留的速度问题，为客户提供更流畅的浏览效果。
在这里奉上源代码，没有做样式处理，不过功能是可以的，希望大家可以和我交流交流！
<html>
<head>
<title>点击弹出DIV选择信息</title>
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="this is my page">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
</head>
<body>
<input type="text" onfocus="alertDivINFO(this, 'id', 'name', true, true, 600, 300, 'arrs')" />
<div style="position: absolute;"></div>
</body>
</html><script type="text/javascript">
//数组信息
var arrs = new Array();
arrs.push({id:"1", name:"张三3"});
arrs.push({id:"2", name:"李四3"});
arrs.push({id:"3", name:"申午武3"});
arrs.push({id:"4", name:"周琬淞3"});
arrs.push({id:"5", name:"覃晓为3"});
arrs.push({id:"6", name:"王五"});
arrs.push({id:"7", name:"宝典3"});
/**
* obj: 点击文本框的对象
* idStr: json数组的id键名
* nameStr: json数组的name键名
* bool: true:表示追加 false:表示重新赋值
* boolSet: true:ID和Name的值都显示 false:只显示Name的值
* widthNum: 信息DIV的宽度
* heightNum: 信息DIV的高度
* arrName: 数组名称
*/
function alertDivINFO(obj, idStr, nameStr, bool, boolSet, widthNum, heightNum, arrName){
obj.blur();
if(!widthNum){
widthNum = 600;
}
if(!heightNum){
heightNum = 350;
}
//创建大的DIV
var alertDivParent = document.createElement("div");
alertDivParent.id = "alertDivParent";
with(alertDivParent.style){
top = 0;
left = 0;
position = "absolute";
background = "#EEEEEE";
filter = "alpha(opacity=70)";
opacity = 0.7;
width = Math.max(document.body.clientWidth, document.body.scrollWidth);
height = Math.max(document.body.clientHeight, document.body.scrollHeight);
}
document.body.appendChild(alertDivParent);
//创建小的DIV
var alertDiv = document.createElement("div");
alertDiv.id = "alertDiv";
with(alertDiv.style){
width = widthNum;
height = heightNum;
position = "absolute";
background = "#DDDDDD";
left = (Math.max(document.body.clientWidth, document.body.scrollWidth) - widthNum) / 2;
top = (Math.max(document.body.clientHeight, document.body.scrollHeight) - heightNum) / 2;
}
//添加到窗体
document.body.appendChild(alertDiv);
//创建搜索的DIV
var alertQueryDiv = document.createElement("div");
alertQueryDiv.id = "alertQueryDiv";
//将搜索的DIV添加到信息DIV
alertDiv.appendChild(alertQueryDiv);
alertQueryDiv.innerHTML = "搜索 名称：";
//创建文本框
var alertQueryINPUT = document.createElement("input");
alertQueryINPUT.id = "alertQueryINPUT";
alertQueryINPUT.type = "text";
//将文本框添加到搜索的DIV
alertQueryDiv.appendChild(alertQueryINPUT);
//创建搜索按钮
var alertQueryBUTTON = document.createElement("input");
alertQueryBUTTON.id = "alertQueryBUTTON";
alertQueryBUTTON.type = "button";
alertQueryBUTTON.value = " 搜 索 ";
//给按钮添加事件
alertQueryBUTTON.onclick = function(){
//计算该宽度可放多少单元格
var tdWidthNum = 130;
var tdNum = parseInt(widthNum / tdWidthNum);
var num = 0;
var j = 0;
//获取显示信息的Table
var alertInfoTab = document.getElementById("alertInfoTab");
//清空THead的信息
alertInfoTab.deleteTHead();
//循环数组
for(var i = 0; i < eval(arrName).length; i ++){
//如果与数组中的相等就添加到TABLE
if(eval(arrName + "[i]." + nameStr).indexOf(alertQueryINPUT.value) >= 0){
var header;
if(j % tdNum == 0){
header = alertInfoTab.createTHead();
header = header.insertRow(num);
num ++;
}
j ++;
var headerName = header.insertCell(-1);
with(headerName.style){
width = tdWidthNum;
color = "blue";
cursor = "pointer";
}
if(boolSet)
headerName.appendChild(document.createTextNode(eval(arrName + "[i]." + idStr) + ": " + eval(arrName + "[i]." + nameStr)));
else if(!boolSet)
headerName.appendChild(document.createTextNode(eval(arrName + "[i]." + nameStr)));
headerName.onclick = function(){
if(bool)
obj.value = obj.value + this.innerHTML + ";";
else if(!bool)
obj.value = this.innerHTML;
//移除弹出的窗体
document.body.removeChild(alertDiv);
document.body.removeChild(alertDivParent);
};
}
}
};
//将按钮添加到搜索的DIV
alertQueryDiv.appendChild(alertQueryBUTTON);
//创建清空按钮
var alertClearBUTTON = document.createElement("input");
alertClearBUTTON.id = "alertClearBUTTON";
alertClearBUTTON.type = "button";
alertClearBUTTON.value = " 清 空 ";
alertClearBUTTON.onclick = function(){
//给文本框赋空值
obj.value = "";
//移除弹出的窗体
document.body.removeChild(alertDiv);
document.body.removeChild(alertDivParent);
};
//将按钮添加到搜索的DIV
alertQueryDiv.appendChild(alertClearBUTTON);
//创建关闭按钮
var alertCancelBUTTON = document.createElement("input");
alertCancelBUTTON.id = "alertCancelBUTTON";
alertCancelBUTTON.type = "button";
alertCancelBUTTON.value = " 关 闭 ";
alertCancelBUTTON.onclick = function(){
//移除弹出的窗体
document.body.removeChild(alertDiv);
document.body.removeChild(alertDivParent);
};
//将按钮添加到搜索的DIV
alertQueryDiv.appendChild(alertCancelBUTTON);
//创建显示信息的Table
var alertInfoTab = document.createElement("table");
alertInfoTab.id = "alertInfoTab";
with(alertInfoTab.style){
margin = 20;
}
//计算该宽度可放多少单元格
var tdWidthNum = 130;
var tdNum = parseInt(widthNum / tdWidthNum);
var num = 0;
for(var i = 0; i < eval(arrName).length; i ++){
var header;
if(i % tdNum == 0){
header = alertInfoTab.createTHead();
header = header.insertRow(num);
num ++;
}
var headerName = header.insertCell(-1);
with(headerName.style){
width = tdWidthNum;
color = "blue";
cursor = "pointer";
}
//var headerType = header.insertCell(-1);
if(boolSet)
headerName.appendChild(document.createTextNode(eval(arrName + "[i]." + idStr) + ": " + eval(arrName + "[i]." + nameStr)));
else if(!boolSet)
headerName.appendChild(document.createTextNode(eval(arrName + "[i]." + nameStr)));
//headerType.appendChild(document.createTextNode("Type"));
headerName.onclick = function(){
if(bool)
obj.value = obj.value + this.innerHTML + ";";
else if(!bool)
obj.value = this.innerHTML;
//移除弹出的窗体
document.body.removeChild(alertDiv);
document.body.removeChild(alertDivParent);
};
}
//将table添加到显示信息的DIV
alertDiv.appendChild(alertInfoTab);
}
</script>