老师帮我找一下代码问题出在哪里了
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 | <!DOCTYPE html> < html > < head > < meta charset = "UTF-8" > < title >onchange()</ title > < style type = "text/css" > #div{ width:300px; height:300px; border:2px solid gray; margin:100px 0 0 200px; } </ style > < script type = "text/javascript" > window.load=function(){ var userColor=document.getElementById("color"), element=document.getElementById("div"); userColor.onchange=function(){ var getColor=this.value, getColor1=userColor.option[userColor.selectedIndex].value, getColor2=userColor.value; console.log(getColor) if(userColor=="0"){ this.style.background="white"; element.innerHTML="我没有发生任何变化"; }else{ this.style.background=getColor; element.innerHTML="我的背景颜色变成了"+getColor+"色"; } } } </ script > </ head > < body > < div > < span >请选择您喜欢的颜色:</ span > < select id = "color" > < option value = "0" >请选择</ option > < option value = "yellow" >黄色</ option > < option value = "orange" >橘色</ option > < option value = "pink" >粉色</ option > < option value = "purple" >紫色</ option > </ select > </ div > < div id = "div" >我是div</ div > </ body > </ html > |
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