这段代码怎么没法得到点击的目标值

Question

  (function (){
             var list=document.getElementById("list-con");

              list.addEventListener('click',function (ev) {
                  var target=ev.target

                  if (target.className.indexOf("like-btn")>=0){
                      if (target.classList.contains("active")){
                          return false
                      };
                      target.addClass("active");

                  }
              })
          })();

Answer 1

var list=document.querySelector("list-con"); ?
而不是var list=document.querySelector(".list-con");

不太懂你问什么