用js和select实现选择头像和显示头像

function setImg(){     var imageSrc = document.registerForm.photo.value;     document.registerForm.img.src = imageSrc; }

<select name="photo"  οnchange="return setImg()" > <option value="images/img1.png" >吴磊</option> <option value="images/img2.png" >倪妮</option> </select>

<img name="img" src="images/img1.png" width="60px" height="65px">