Updated for the previous version of dhDataGrid Ver1.0.0!
1. The fixed mode of the title bar and left sidebar is updated, and the expression mode is cancelled;
2. The sorting mode is updated, and it also supports the sorting of numbers, characters, dates, mixed numbers and characters, and Chinese characters;
3. Support skin change, you can customize the control style yourself;
4. Reserve [double-click], [right-click] functions;
5. Support IE, FF;
CSS:
/*dhdatagrid block style*/
#dhdatagrid {position:relative;width:500px;height:200px;background:white;margin :0px;padding:0px;overflow:hidden;border:1px inset;-moz-user-select:none;}
/*dhdatagrid table global style*/
#dhdatagrid table {table-layout:fixed; margin:0px;}
#dhdatagrid table td {height:18px;cursor:default;font-size:12px;font-family:verdana;overflow:hidden;white-space:nowrap;text-indent:2px;border -right:1px solid buttonface;border-bottom:1px solid buttonface;}
#dhdatagrid table td .arrow {font-size:8px;color:#808080;}
#dhdatagrid table .lastdata {border-right :none;}
#dhdatagrid table .column {width:120px;cursor:default;background:buttonface;border-top:1px solid #fff;border-right:1px solid #404040;border-bottom:1px solid # 404040;border-left:1px solid #fff;}
#dhdatagrid table .over {width:120px;cursor:default;background:buttonface;border-top:1px solid #fff;border-right:1px solid #404040 ;border-bottom:1px solid #404040;border-left:1px solid #fff;}
#dhdatagrid table .sortdown {width:120px;cursor:default;background:buttonface;border-right:1px solid #ffffff; border-bottom:1px solid #ffffff;border-left:1px solid #404040;border-top:1px solid #404040;position:relative;left:1px;}
#dhdatagrid table .dataover {background:#FAFAFA; }
#dhdatagrid table .firstcolumn {width:30px;text-indent:0px;text-align:center;background:buttonface;border-top:1px solid #fff;border-right:1px solid #404040;border- bottom:1px solid #404040;border-left:1px solid #fff;}
#dhdatagrid table .lastcolumn {background:buttonface;border-top:1px solid #fff;border-right:1px solid #404040;border- bottom:1px solid #404040;border-left:1px solid #fff;}
/*dhdatagrid selected row style*/
#dhdatagrid table .selectedrow {background:highlight;color:white;}
/*dhdatagrid header style*/
#dhdatagrid #titlecolumn {width:100%;position:absolute;top:0px;left:0px;z-index:3;}
/*dhdatagrid left column style* /
#dhdatagrid #slidecolumn {width:30px;position:absolute;top:0px;left:0px;z-index:2;}
#dhdatagrid #slidecolumn td {width:30px;text-indent:0px ;text-align:center;background:buttonface;border-top:1px solid #fff;border-right:1px solid #404040;border-bottom:1px solid #404040;border-left:1px solid #fff;}
/*dhdatagrid content table body style*/
#dhdatagrid #datacolumn {width:100%;position:absolute;top:0px;left:0px;}
/*dhdatagrid origin style*/
# dhdatagrid #zero {width:30px;height:18px;margin:0px;padding:0px;position:absolute;top:0px;left:0px;z-index:10;background:buttonface;border-top:1px solid #fff ;border-right:1px solid #404040;border-bottom:1px solid #404040;border-left:1px solid #fff;text-align:center;font-size:10px;color:#A19F92;}
JS:
function dhdatagrid(){
//author:dh20156;
this.callname = "dhdg";
this.width = 500;
this.height = 200;
this.rid = "dhdatagrid";
this.columns = [];
this.data = [];
this.dblclick_fun = function(){}
this.contextmenu_fun = function(){}
this.parentNode = document.body;
var dh = this;
var framediv = null;
var zerobj = null;
var leftobj = null;
var titleobj = null;
var dataobj = null;
var hbar = null;
var vbar = null;
var bgbar = null;
//Change the initial position of the column width
var ml = 0;
//Change the initial width of the column width object
var ow = 0;
//Change the column width object
var tdobj = null;
//Current selection Fixed row index
var nowrow = null;
//Whether to change the vertical scroll bar position
var changeposv = true;
this.init = function(){
//init the data initial data
var dgc = "";
if(this.columns.length>0){
dgc = "
for(var cc=0;cc
}
dgc = "
}
var dgs = "";
var dgd = "";
if(this.data.length> 0){
//First column
dgs = "
for(var r=0;r
dgd = "
for( var c=0;c
}
dgd = "
}
if(dgc==""){
dgc = "
for(var dc=0;dc
}
dgc = "
}
}
//dhdatagrid frame frame
var dgframe = document.createElement(" DIV");
dgframe.id = this.rid;
dgframe.onmousedown = function(e){e=e||window.event;getrow(e);}
dgframe.onmousemove = function (e){e=e||window.event;rsc_m(e);}
if(document.attachEvent){
document.attachEvent("onmouseup",rsc_u);
}else{
document.addEventListener("mouseup",rsc_u,false);
}
dgframe.oncontextmenu = function(){return false}
dgframe.onselectstart = function(){return false}
ae(dgframe);
//dhdatagrid zero point zero point
var dgzero = ""
//dhdatagrid slidecolumn first column
var dgslide = "
//dhdatagrid column title bar
var dgcolumn = "
//dhdatagrid data data
var dgdata = "
//dhdatagrid hbar 水平滚动条
var dghbar = document.createElement("DIV");
dghbar.id = "hbar";
dghbar.style.position = "absolute";
dghbar.style.width = "100%";
dghbar.style.height = "17px";
dghbar.style.top = this.height-17;
dghbar.style.overflowX = "auto";
dghbar.style.zIndex = "10";
dghbar.onscroll = function(){scrh();}
dghbar.innerHTML = "
//dhdatagrid vbar 垂直滚动条
var dgvbar = document.createElement("DIV");
dgvbar.id = "vbar";
dgvbar.style.position = "absolute";
dgvbar.style.width = "17px";
dgvbar.style.height = "100%";
dgvbar.style.left = this.width-17;
dgvbar.style.overflowY = "auto";
dgvbar.style.zIndex = "10";
dgvbar.onscroll = function(){scrv();}
dgvbar.innerHTML = "
//dhdatagrid bgbar 滚动条背景
var dgbgbar = document.createElement("DIV");
dgbgbar.id = "bgbar";
dgbgbar.style.background = "buttonface";
dgbgbar.style.position = "absolute";
dgbgbar.style.width = "100%";
dgbgbar.style.height = "17px";
dgbgbar.style.top = this.height-17;
dgbgbar.style.overflowX = "auto";
dgbgbar.style.zIndex = "9";
dgbgbar.style.display = "none";
dgbgbar.innerHTML = " ";
//appendChild
dgframe.innerHTML = dgzero dgslide dgcolumn dgdata;
dgframe.appendChild(dghbar);
dgframe.appendChild(dgvbar);
dgframe.appendChild(dgbgbar);
this.parentNode.appendChild(dgframe);
if(document.attachEvent){
document.attachEvent("onkeydown",updown);
}else{
document.addEventListener("keydown",updown,false);
}
framediv = dgframe;
zerobj = document.getElementById("zero");
leftobj = document.getElementById("slidecolumn");
titleobj = document.getElementById("titlecolumn");
dataobj = document.getElementById("datacolumn");
hbar = dghbar;
vbar = dgvbar;
bgbar = dgbgbar;
var btt = getCurrentStyle(framediv,"borderTopWidth");
var btr = getCurrentStyle(framediv,"borderRightWidth");
var btb = getCurrentStyle(framediv,"borderBottomWidth");
var btl = getCurrentStyle(framediv,"borderLeftWidth");
var fh = getCurrentStyle(framediv,"height");
var zh = getCurrentStyle(zerobj,"height");
var zbt = getCurrentStyle(zerobj,"borderTopWidth");
var zbb = getCurrentStyle(zerobj,"borderBottomWidth");
if(document.all){
vbar.style.left = parseInt(vbar.style.left)-parseInt(btr)-parseInt(btl);
}else{
framediv.style.height = parseInt(fh)-parseInt(btb)-parseInt(btt);
zerobj.style.height = parseInt(zh)-parseInt(zbb)-parseInt(zbt);
}
hbar.style.top = parseInt(hbar.style.top)-parseInt(btb)-parseInt(btt);
bgbar.style.top = parseInt(bgbar.style.top)-parseInt(btb)-parseInt(btt);
}
function getCurrentStyle(oElement, sProperty) {
if(oElement.currentStyle){
return oElement.currentStyle[sProperty];
}else if(window.getComputedStyle){
sProperty = sProperty.replace(/([A-Z])/g, "-$1").toLowerCase();
return window.getComputedStyle(oElement, null).getPropertyValue(sProperty);
}else{
return null;
}
}
//设置块滚动条
this.setwh = function(){
hbar.style.display = "block";
vbar.style.display = "block";
hbar.childNodes[0].style.width = dataobj.offsetWidth;
vbar.childNodes[0].style.height = dataobj.offsetHeight;
if(hbar.childNodes[0].offsetWidth hbar.style.display = "none";
}else{
hbar.style.display = "block";
}
if(vbar.childNodes[0].offsetHeight vbar.style.display = "none";
}else{
vbar.style.display = "block";
}
if(hbar.childNodes[0].offsetWidth>hbar.offsetWidth && vbar.childNodes[0].offsetHeight>vbar.offsetHeight && changeposv){
bgbar.style.display = "block";
hbar.style.width = hbar.offsetWidth-17;
vbar.style.height = vbar.offsetHeight-17;
vbar.childNodes[0].style.height = vbar.childNodes[0].offsetHeight 17;
changeposv = false;
}
if(hbar.childNodes[0].offsetWidth bgbar.style.display = "none";
hbar.childNodes[0].style.width = 0;
hbar.style.width = hbar.offsetWidth 17;
vbar.style.height = vbar.offsetHeight 17;
changeposv = true;
if(vbar.offsetHeight-dataobj.offsetHeight>dataobj.offsetTop && document.all){
leftobj.style.top = leftobj.offsetTop 17;
dataobj.style.top = dataobj.offsetTop 17;
}
}
}
//鼠标滚轮,列表滚动事件
function mwEvent(e){
e=e||window.event;
if(e.wheelDelta0){
vbar.scrollTop = 18;
}else {
vbar.scrollTop -= 18;
}
}
function ae(obj){
if(document.attachEvent){
obj.attachEvent("onmousewheel",mwEvent);
}else{
obj.addEventListener("DOMMouseScroll",mwEvent,false);
}
}
//滚动条事件
function scrv(){
leftobj.style.top = -(vbar.scrollTop);
dataobj.style.top = -(vbar.scrollTop);
}
function scrh(){
titleobj.style.left = -(hbar.scrollLeft);
dataobj.style.left = -(hbar.scrollLeft);
}
//选择行
function getrow(e){
e=e||window.event;
var esrcobj = e.srcElement?e.srcElement:e.target;
if(esrcobj.parentNode.tagName=="TR"){
var epobj = esrcobj.parentNode;
var eprowindex = epobj.rowIndex;
if(eprowindex!=0){
if(nowrow!=null){
dataobj.rows[nowrow].className = "";
}
dataobj.rows[eprowindex].className = "selectedrow";
nowrow = eprowindex;
}
}
}
//更改列宽
this.rsc_d = function(e,obj){
var px = document.all?e.offsetX:e.layerX-obj.offsetLeft;
if(px>obj.offsetWidth-6 && px
obj=obj||this;
ml = e.clientX;
ow = obj.offsetWidth;
tdobj = obj;
if(obj.setCapture){
obj.setCapture();
}else{
e.preventDefault();
}
}else{
if(nowrow!=null){
dataobj.rows[nowrow].className = "";
}
if(obj.getAttribute("sort")==null){
obj.setAttribute("sort",0);
}
var sort = obj.getAttribute("sort");
if(sort==1){
dgsort(obj,true);
obj.setAttribute("sort",0);
}else{
dgsort(obj,false);
obj.setAttribute("sort",1);
}
obj.className = "sortdown";
}
}
this.mouseup = function(obj){
obj.className = "over";
}
function rsc_m(e){
if(tdobj!=null){
e=e||window.event;
var newwidth = ow-(ml-e.clientX);
if(newwidth>5){
tdobj.style.width = newwidth;
dataobj.rows[0].cells[tdobj.cellIndex].style.width = newwidth;
}else{
tdobj.style.width = 5;
dataobj.rows[0].cells[tdobj.cellIndex].style.width = 5;
}
dh.setwh();
scrh();
}
}
function rsc_u(e){
if(tdobj!=null){
e=e||window.event;
var newwidth = ow-(ml-e.clientX);
if(newwidth>5){
tdobj.style.width = newwidth;
dataobj.rows[0].cells[tdobj.cellIndex].style.width = newwidth;
}else{
tdobj.style.width = 5;
dataobj.rows[0].cells[tdobj.cellIndex].style.width = 5;
}
if(tdobj.releaseCapture){
tdobj.releaseCapture();
}
ml = 0;
ow = 0;
tdobj = null;
}
dh.setwh();
scrh();
}
this.cc = function(e,obj){
var px = document.all?e.offsetX:e.layerX-obj.offsetLeft;
if(px>obj.offsetWidth-6 && px
}else{
obj.style.cursor = "default";
}
}
this.over = function(obj){
obj.className = "over";
}
this.out = function(obj){
obj.className = "column";
}
this.dataover = function(obj){
if(obj.rowIndex!=nowrow){
obj.className = "dataover";
}
}
this.dataout = function(obj){
if(obj.rowIndex!=nowrow){
obj.className = "";
}
}
//键盘Up & Down事件
function updown(e){
e=e || window.event; e=e.which || e.keyCode;
var rl = dh.data.length;
switch(e){
case 38://Up;
if(nowrow!=null && nowrow>1){
vbar.scrollTop -= 18;
dataobj.rows[nowrow].className = "";
nowrow -= 1;
dataobj.rows[nowrow].className = "selectedrow";
};
break;
case 40://Down;
if(nowrow!=null && nowrow
dataobj.rows[nowrow].className = "";
nowrow = 1;
dataobj.rows[nowrow].className = "selectedrow";
};
break;
default:break;
}
}
function dti(s){
var n = 0;
var a = s.match(/d /g);
for(var i=0;i
}
}
n = a.join("");
return n;
}
//排序
function dgsort(obj,asc){
var rl = dh.data.length;
var ci = obj.cellIndex;
var rowsobj = [];
for(var i=1;i
}
rowsobj.sort(function(trObj1,trObj2){
if(!isNaN(trObj1.cells[ci].innerHTML.charAt(0)) && !isNaN(trObj2.cells[ci].innerHTML.charAt(0))){
if(asc){
return dti(trObj1.cells[ci].innerHTML)-dti(trObj2.cells[ci].innerHTML);
}else{
return dti(trObj2.cells[ci].innerHTML)-dti(trObj1.cells[ci].innerHTML);
}
}else{
if(asc){
return trObj1.cells[ci].innerHTML.localeCompare(trObj2.cells[ci].innerHTML);
}else{
return trObj2.cells[ci].innerHTML.localeCompare(trObj1.cells[ci].innerHTML);
}
}
});
for(var i=0;i
}
for(var c=1;c
}
if(asc){
obj.childNodes[1].innerHTML = "▲";
}else{
obj.childNodes[1].innerHTML = "▼";
}
}
}
注: DEMO(演示):http://www.jxxg.com/dh20156/dhdatagrid/
原文:http://blog.csdn.net/dh20156/archive/2007/02/08/1505050.aspx
另外一个封装的很简单的grid by 秦皇也爱JS
<script> <BR>var GridData = { <BR> title: ["姓名","性别","年龄","学历","特长"], <BR> type: [0,1,0,1,0], //编辑框类型 ŀ--textbox Ł---select <BR> order: [-1,-1,-1,-1,-1], //排序类型 Ł----升序 -1---降序 <BR> data: [["张三","男",27,"本科","足球"], <BR> ["YM","男",26,"本科","中锋"], <BR> ["McGrady","男",28,"博士","前锋"], <BR> ["James","男",25,"本科","小前锋"], <BR> ["Good","女",21,"高中","商品"], <BR> ["Fut","男",22,"本科","WAR3"], <BR> ["Keens","男",37,"高中","SC"], <BR> ["Gruby","女",32,"本科","SC"], <BR> ["Grrr","男",19,"硕士","SC"], <BR> ["Sky","男",22,"本科","WAR3"], <BR> ["Moon","男",25,"本科","WAR3"]] <BR>}; <br><br>var 性别 = ["男", "女"]; <BR>var 学历 = ["高中", "本科", "硕士", "博士"]; <br><br>function MyGrid(data, cnt){ <BR> MyGrid.backColor = "#fdfdfd"; <BR> MyGrid.hoverColor = "#edfae9"; <BR> MyGrid.clickColor = "#e1e6f1"; <br><br> this.datas = data; <BR> this.container = cnt; <BR> this.table; <BR> this.curRow; <BR> this.curCell; <BR> this.editTools = [document.body.appendChild(document.createElement("input")),document.body.appendChild(document.createElement("select"))]; <BR> var CurGrid = this; <BR> this.load = function(){ //grid重画模块 <BR> /** 加载table **/ <BR> var tbStr = []; <BR> tbStr.push("<table cellspacing='1'><tr height='25'>"); <BR> for(var o in this.datas.title){ <BR> tbStr.push("<th>" + this.datas.title[o] + (this.datas.order[o]==1?"↑":"↓") + ""); <BR> } <BR> tbStr.push(""); <br><br> for(var i in this.datas.data){ <BR> tbStr.push("<tr bgcolor=" + MyGrid.backColor + " height='25'>"); <BR> for(var j in this.datas.data[i]){ <BR> tbStr.push("<td>" + this.datas.data[i][j] + ""); <BR> } <BR> tbStr.push(""); <BR> } <br><br> tbStr.push(""); <BR> this.container.innerHTML = tbStr.join(""); <BR> this.table = this.container.firstChild; <br><br> /** 设置编辑工具 **/ <BR> this.editTools[0].onblur = function(){ <BR> CurGrid.curCell.removeChild(CurGrid.curCell.firstChild) <BR> CurGrid.curCell.appendChild(document.createTextNode(this.value)); <BR> if(isNaN(CurGrid.datas.data[CurGrid.curCell.parentNode.rowIndex-1][CurGrid.curCell.cellIndex])){ <BR> CurGrid.datas.data[CurGrid.curCell.parentNode.rowIndex-1][CurGrid.curCell.cellIndex] = this.value; <BR> }else{ <BR> CurGrid.datas.data[CurGrid.curCell.parentNode.rowIndex-1][CurGrid.curCell.cellIndex] = Number(this.value) <BR> } <br><br> this.value = ""; <BR> this.style.display = "none"; <BR> } <br><br> this.editTools[1].onblur = function(){ <BR> this.options.length = 0; <BR> this.style.display = "none"; <BR> } <br><br> this.editTools[1].onchange = function(){ <BR> CurGrid.curCell.removeChild(CurGrid.curCell.firstChild) <BR> CurGrid.curCell.appendChild(document.createTextNode(this.value)); <BR> CurGrid.datas.data[CurGrid.curCell.parentNode.rowIndex-1][CurGrid.curCell.cellIndex] = this.value; <br><br> this.options.length = 0; <BR> this.style.display = "none"; <BR> } <br><br> /** 设置单元格 **/ <BR> for(var r=1; r<this.table.rows.length;r++){ <BR> this.table.rows[r].onmouseover = function(){ this.style.backgroundColor = MyGrid.hoverColor; } <BR> this.table.rows[r].onmouseout = function(){ <BR> if(CurGrid.curRow!=this) this.style.backgroundColor = MyGrid.backColor; <BR> else this.style.backgroundColor = MyGrid.clickColor; <BR> } <br><br> for(var c=0;c<this.table.rows[r].cells.length;c++){ <BR> this.table.rows[r].cells[c].onclick = function(){ <BR> if(CurGrid.curRow) CurGrid.curRow.style.backgroundColor = MyGrid.backColor; <BR> CurGrid.curRow = this.parentNode; <BR> this.parentNode.style.backgroundColor = MyGrid.clickColor; <BR> } <br><br> this.table.rows[r].cells[c].ondblclick = function(){ <BR> //alert("( " + this.cellIndex + "," + this.parentNode.rowIndex + " ) " + this.firstChild.data); <BR> CurGrid.curCell = this; <br><br> CurGrid.editTools[CurGrid.datas.type[this.cellIndex]].style.display = "block"; <BR> CurGrid.editTools[CurGrid.datas.type[this.cellIndex]].style.width = this.offsetWidth; <BR> CurGrid.editTools[CurGrid.datas.type[this.cellIndex]].style.height = this.offsetHeight; <BR> CurGrid.editTools[CurGrid.datas.type[this.cellIndex]].style.left = getAbsPos(this).leftx - CurGrid.container.scrollLeft; <BR> CurGrid.editTools[CurGrid.datas.type[this.cellIndex]].style.top = getAbsPos(this).topy - CurGrid.container.scrollTop; <BR> CurGrid.editTools[CurGrid.datas.type[this.cellIndex]].focus(); <br><br> if(CurGrid.datas.type[this.cellIndex] == 0){ <BR> CurGrid.editTools[CurGrid.datas.type[this.cellIndex]].select(); <BR> }else if(CurGrid.datas.type[this.cellIndex] == 1){ <BR> CurGrid.loadSelect(CurGrid.datas.title[this.cellIndex]); <BR> } <br><br> CurGrid.editTools[CurGrid.datas.type[this.cellIndex]].value = this.firstChild.data; <BR> } <BR> } <BR> } <br><br> for(var g=0; g<this.table.rows[0].cells.length;g++){ <BR> this.table.rows[0].cells[g].onclick = function(){ <BR> CurGrid.datas.order[this.cellIndex] = -CurGrid.datas.order[this.cellIndex]; <BR> CurGrid.sort(this.cellIndex, CurGrid.datas.order[this.cellIndex]); <BR> } <BR> } <BR> } <br><br> this.sort = function(n, type){ //排序 <BR> this.datas.data = this.datas.data.sort(function(x,y){if (x[n]>y[n]){return type;}else if(x[n]<y[n]){return -type;}else{return 0;}}); <BR> this.load(); <BR> } <br><br> this.delRow = function(){ //删除行 <BR> this.datas.data.splice(this.curRow.rowIndex-1, 1); <BR> this.table.deleteRow(this.curRow.rowIndex); <BR> } <br><br> this.loadSelect = function(type){ //读取下拉框内容 <BR> var opts = this.editTools[1].options; <BR> for(var o in eval(type)){ <BR> var opt = document.createElement("option"); <BR> opt.value = opt.text = eval(type)[o]; <BR> opts.add(opt); <BR> } <BR> } <BR>} <br><br>var grid; <BR>window.onload = loadGrid; <br><br>function loadGrid(){ <BR> grid = new MyGrid(GridData, $("panel")); <BR> grid.load(); <BR>} <br><br>function $(id){ <BR> return document.getElementById?document.getElementById(id):eval(id); <BR>} <br><br>function getAbsPos(obj){ <BR> var objResult = new Object(); <BR> objResult.topy = obj.offsetTop; <BR> objResult.leftx = obj.offsetLeft; <BR> while( obj = obj.offsetParent){ <BR> objResult.topy += obj.offsetTop; <BR> objResult.leftx += obj.offsetLeft; <BR> } <BR> return objResult; <BR>} <br><br></script>

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The shift from C/C to JavaScript requires adapting to dynamic typing, garbage collection and asynchronous programming. 1) C/C is a statically typed language that requires manual memory management, while JavaScript is dynamically typed and garbage collection is automatically processed. 2) C/C needs to be compiled into machine code, while JavaScript is an interpreted language. 3) JavaScript introduces concepts such as closures, prototype chains and Promise, which enhances flexibility and asynchronous programming capabilities.

Different JavaScript engines have different effects when parsing and executing JavaScript code, because the implementation principles and optimization strategies of each engine differ. 1. Lexical analysis: convert source code into lexical unit. 2. Grammar analysis: Generate an abstract syntax tree. 3. Optimization and compilation: Generate machine code through the JIT compiler. 4. Execute: Run the machine code. V8 engine optimizes through instant compilation and hidden class, SpiderMonkey uses a type inference system, resulting in different performance performance on the same code.

JavaScript's applications in the real world include server-side programming, mobile application development and Internet of Things control: 1. Server-side programming is realized through Node.js, suitable for high concurrent request processing. 2. Mobile application development is carried out through ReactNative and supports cross-platform deployment. 3. Used for IoT device control through Johnny-Five library, suitable for hardware interaction.

I built a functional multi-tenant SaaS application (an EdTech app) with your everyday tech tool and you can do the same. First, what’s a multi-tenant SaaS application? Multi-tenant SaaS applications let you serve multiple customers from a sing


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DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software