用js修改了属性，为啥没有反应。。。

Question

  for ( i = 0; i < lis.length; i++) {
            lis[i].setAttribute("isclick", "false");
            lis[i].setAttribute("onclick", "charge(this)")
        }
        
        
 function charge(obj) {           

            if (obj.getAttribute("isclick") === "false") {
                console.log(obj.getAttribute("isclick"));
                obj.style.backgroundImage = "url(image/[e-mail])";
                obj.isclick = "true";
                console.log(obj.getAttribute("isclick"));//上面修改了，但这里一直输出false
            } else {
                obj.style.backgroundImage = "url(image/[e-mail])";
                obj.isclick = "false";
            }
        }

Answer 1

obj.isclick = "true";改为：
obj.setAttribute("isclick", "true");

HTML标签自定义的属性就不要按照标签原有属性的方式来写了