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一个用js实现控制台控件的代码

  • 时间:2021-10-19 09:54 编辑: 来源: 阅读:
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摘要:一个用js实现控制台控件的代码
[u]复制代码[/u] 代码如下:
<body margin="0"> </body> <script>     function Console(width,height,command)     {         var container=document.createElement("div");         this.container=container;         container.runtimeStyle.width=(width);         container.runtimeStyle.height=(height);         container.runtimeStyle.margin="0px";         container.runtimeStyle.backgroundColor="black";         container.runtimeStyle.fontFamily="Terminal";         container.runtimeStyle.color="white";         container.runtimeStyle.fontSize="16px";         this.output=document.createElement("div");         container.appendChild(this.output);         container.innerHTML+="js>"         this.input=document.createElement("input");         container.appendChild(this.input);         this.input.runtimeStyle.backgroundColor="black";         this.input.runtimeStyle.borderWidth="0px";         this.input.runtimeStyle.color="white";         this.input.runtimeStyle.fontFamily="Terminal";         this.input.runtimeStyle.width="90%"         this.input.runtimeStyle.fontSize="16px"         this.input.runtimeStyle.position="relative";         this.input.runtimeStyle.top="2px";         command=command||function(str)         {             var e;             try{                 var r=eval(str);             } catch(e) {                 return "Bad command";             }             return r;         }         this.input.command=function()         {             this.parentNode.childNodes[0].innerHTML+=this.value+'<br/>'             this.parentNode.childNodes[0].innerHTML+=(command(this.value)+"<br/>")         }         this.input.onkeyup=new Function("e","e=e||event;if(e.keyCode!=13)return;this.command();this.value='';");         this.appendto=function(parent)         {             parent.appendChild(this.container);         }         container=null;     }     //var db=new DrawingBoard(100,100)     //db.drawLine([5,5],[36,44],"red")     //document.body.appendChild(db.container);     var c=new Console("100%","100%");     c.appendto(document.body); </script>
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