SOURCE

console 命令行工具 X clear 

                    

                        
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console

            
function changeSize()
{
document.getElementById("compman").height="270"
document.getElementById("compman").width="164"
}

            
<img id="compman" src="//www.w3school.com.cn/i/eg_bulbon.gif"> 
 <br>
 <br> 
 <input type="button" onclick="changeSize()" value="改变图像的高度和宽度">