代码中的字符串值转换为数字类型 - 在线编辑器

          if (localStorage.clickcount) {
  localStorage.clickcount = Number(localStorage.clickcount) + 1;
} else {
  localStorage.clickcount = 1;
}
document.getElementById("result").innerHTML = " 你已经点击了按钮 " + localStorage.clickcount + " 次 ";
        