网页绘图??? 在网页在可不可以绘图呢?? 画线就OK了. 如果有,怎么做呢?? 谢谢解答呀! 今晚小弟请客. 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><HTML><HEAD><TITLE>paint</TITLE><style>.emuW{position:absolute;font-size:2px;width:2;background-color:red}.emuH{position:absolute;font-size:2px;height:2;background-color:red}.emuWH{position:absolute;font-size:2px;width:2;height:2;background-color:red}</style><SCRIPT LANGUAGE="JavaScript" defer><!-- var blnStartFlag; blnStartFlag = false; var intCount; var intMouseMoveCount; intCount = 1; intMouseMoveCount = 1; function fnSwitchMode(){ if(blnStartFlag == false && window.event.srcElement.type != "button"){ blnStartFlag = true; } else{ blnStartFlag = false; oldX=oldY=0; } } function fnPaint(){ if(blnStartFlag == true){ intCount = intCount + 1; var stElm = drawLine(oldX==0?event.x:oldX,oldY==0?event.y:oldY,event.x,event.y,"red"); oldX = event.x;oldY = event.y;draw(stElm); } intMouseMoveCount = intMouseMoveCount + 1; div1.innerHTML = "MouseMoveCount:" + intMouseMoveCount + "<br> PaintCount:" + intCount + "<br>LeftPos:" + window.event.x + "<br> TopPos:" + window.event.y; } function draw(html){ if (emu == null || emu.children.length>maxChildren){ emu = document.createElement("<div>"); setTimeout("document.body.insertBefore(emu)",50); } setTimeout("emu.innerHTML+=\""+html+"\"",1) } function fnShowCount(){ alert(intCount); }//--></SCRIPT><SCRIPT LANGUAGE="JavaScript"><!--var emu = null;var maxChildren = 50;var oldX = 0;var oldY = 0;function drawLine(x0,y0,x1,y1,color){ x0 = Math.round(x0); x1 = Math.round(x1); y0 = Math.round(y0); y1 = Math.round(y1); var rs = ""; if (y0 == y1){ //画横? if (x0>x1){var t=x0;x0=x1;x1=t} rs = "<p class=emuH style='top:"+y0+";left:"+x0+";background-color:"+color+"; width:"+Math.abs(x1-x0)+"'/>"; } else if (x0 == x1){ //画?? if (y0>y1){var t=y0;y0=y1;y1=t} rs = "<p class=emuW style='top:"+y0+";left:"+x0+";background-color:"+color+";height:"+Math.abs(y1-y0)+"'/>"; } else{ var lx = x1-x0; var ly = y1-y0; if (Math.abs(lx)>Math.abs(ly)){ if (ly<0){ var t=x0;x0=x1;x1=t; t=y0;y0=y1;y1=t; lx = -lx; ly = -ly; } var dx = lx/ly; rs = new Array(ly); for (var i=0;i<ly;i++){ var left,width; if (dx>0){ left = Math.round(i*dx); width = Math.round((i+1)*dx)-left; left += x0; if (width+left>x1) width = x1-left; }else{ left = Math.round((i+1)*dx); width = Math.round((i)*dx)-left; left += x0; if (left<x1) { width = width+left-x1; left=x1; } } rs[i] = "<p class=emuH style='top:"+(y0+i)+";left:"+left+";width:"+width+";background-color:"+color+"'/>"; } }else{ if (lx<0){ var t=x0;x0=x1;x1=t; t=y0;y0=y1;y1=t; lx = -lx; ly = -ly; } var dy = ly/lx; rs = new Array(lx); for (var i=0;i<lx;i++){ var top,height; if (dy>0){ top = Math.round(i*dy); height = Math.round((i+1)*dy)-top; top += y0; if (height+top>y1) height = y1-top; }else{ top = Math.round((i+1)*dy); height = Math.round((i)*dy)-top; top += y0; if (top<y1) { height = height+top-y1; top=y1; } } rs[i] = "<p class=emuW style='top:"+top+";left:"+(x0+i)+";height:"+height+";background-color:"+color+"'/>"; } } rs = rs.join(""); } return rs}//--></SCRIPT></HEAD><BODY onclick="fnSwitchMode()" onmousemove="fnPaint()"><input type="button" onclick="fnShowCount()" value="ShowCount"><div id="div1"></div></BODY></HTML> 谢谢楼上的.我终于知道网页是可以写字的. jquery 选择器问题 这个网站的flash图片 javascript的内置对象函数什么的去哪查。网上有没有标准文档。 split使用方法 js中,怎么计算一个字符串宽度?? document.form1.name.disabled="true"; 发现一个奇怪现象--关于document.getElementById的问题 如何在网页里执行可执行文件! 怎样祛除有连接的图象的兰色边框? 进来者每人壹分! 表单验证导致CPU100% 哪里出问题了 为什么 请教,ReplaceChild函数在firefox里面表现异常???
<HTML>
<HEAD>
<TITLE>paint</TITLE>
<style>
.emuW{position:absolute;font-size:2px;width:2;background-color:red}
.emuH{position:absolute;font-size:2px;height:2;background-color:red}
.emuWH{position:absolute;font-size:2px;width:2;height:2;background-color:red}
</style><SCRIPT LANGUAGE="JavaScript" defer>
<!--
var blnStartFlag;
blnStartFlag = false;
var intCount;
var intMouseMoveCount;
intCount = 1;
intMouseMoveCount = 1; function fnSwitchMode(){
if(blnStartFlag == false && window.event.srcElement.type != "button"){
blnStartFlag = true;
}
else{
blnStartFlag = false;
oldX=oldY=0;
}
} function fnPaint(){
if(blnStartFlag == true){
intCount = intCount + 1;
var stElm = drawLine(oldX==0?event.x:oldX,oldY==0?event.y:oldY,event.x,event.y,"red");
oldX = event.x;oldY = event.y;draw(stElm);
}
intMouseMoveCount = intMouseMoveCount + 1;
div1.innerHTML = "MouseMoveCount:" + intMouseMoveCount
+ "<br> PaintCount:" + intCount
+ "<br>LeftPos:" + window.event.x
+ "<br> TopPos:" + window.event.y;
}
function draw(html){
if (emu == null || emu.children.length>maxChildren){
emu = document.createElement("<div>");
setTimeout("document.body.insertBefore(emu)",50);
}
setTimeout("emu.innerHTML+=\""+html+"\"",1)
}
function fnShowCount(){
alert(intCount);
}
//-->
</SCRIPT><SCRIPT LANGUAGE="JavaScript">
<!--
var emu = null;
var maxChildren = 50;
var oldX = 0;
var oldY = 0;
function drawLine(x0,y0,x1,y1,color){
x0 = Math.round(x0);
x1 = Math.round(x1);
y0 = Math.round(y0);
y1 = Math.round(y1);
var rs = "";
if (y0 == y1){ //画横?
if (x0>x1){var t=x0;x0=x1;x1=t}
rs = "<p class=emuH style='top:"+y0+";left:"+x0+";background-color:"+color+"; width:"+Math.abs(x1-x0)+"'/>";
}
else if (x0 == x1){ //画??
if (y0>y1){var t=y0;y0=y1;y1=t}
rs = "<p class=emuW style='top:"+y0+";left:"+x0+";background-color:"+color+";height:"+Math.abs(y1-y0)+"'/>";
}
else{
var lx = x1-x0;
var ly = y1-y0;
if (Math.abs(lx)>Math.abs(ly)){
if (ly<0){
var t=x0;x0=x1;x1=t;
t=y0;y0=y1;y1=t;
lx = -lx;
ly = -ly;
}
var dx = lx/ly;
rs = new Array(ly);
for (var i=0;i<ly;i++){
var left,width;
if (dx>0){
left = Math.round(i*dx);
width = Math.round((i+1)*dx)-left;
left += x0;
if (width+left>x1) width = x1-left;
}else{
left = Math.round((i+1)*dx);
width = Math.round((i)*dx)-left;
left += x0;
if (left<x1) {
width = width+left-x1;
left=x1;
}
}
rs[i] = "<p class=emuH style='top:"+(y0+i)+";left:"+left+";width:"+width+";background-color:"+color+"'/>";
}
}else{
if (lx<0){
var t=x0;x0=x1;x1=t;
t=y0;y0=y1;y1=t;
lx = -lx;
ly = -ly;
}
var dy = ly/lx;
rs = new Array(lx);
for (var i=0;i<lx;i++){
var top,height;
if (dy>0){
top = Math.round(i*dy);
height = Math.round((i+1)*dy)-top;
top += y0;
if (height+top>y1) height = y1-top;
}else{
top = Math.round((i+1)*dy);
height = Math.round((i)*dy)-top;
top += y0;
if (top<y1) {
height = height+top-y1;
top=y1;
}
}
rs[i] = "<p class=emuW style='top:"+top+";left:"+(x0+i)+";height:"+height+";background-color:"+color+"'/>";
}
}
rs = rs.join("");
}
return rs
}//-->
</SCRIPT>
</HEAD><BODY onclick="fnSwitchMode()" onmousemove="fnPaint()">
<input type="button" onclick="fnShowCount()" value="ShowCount">
<div id="div1"></div>
</BODY>
</HTML>