Js问题

Question

给个id,一个点击的时候再把另一个的color设为black

Answer 1

<div onClick="if(window.redDiv)window.redDiv.style.color='black';this.style.color='red';window.redDiv=this;">abc</div>
<br />
<div onClick="if(window.redDiv)window.redDiv.style.color='black';this.style.color='red';window.redDiv=this;">abc</div>
<br />
<div onClick="if(window.redDiv)window.redDiv.style.color='black';this.style.color='red';window.redDiv=this;">abc</div>

Answer 2

<div id='b' onClick="this.style.color='red';document.all.a.style.color='';">abc</div>
<br />
<div id= 'a' onClick="this.style.color='red';document.all.b.style.color='';">def</div>