iFE-30 笔记

//input背景被选中变色
var input = document.getElementById(‘input‘);
   var btn = document.querySelectorAll(‘button‘)[0];
   btn.onclick= function(){
      input.style.backgroundColor = ‘blue‘
   }
//input背景不变色（没被选中）
var input = document.querySelectorAll(‘#input‘);
   var btn = document.querySelectorAll(‘button‘)[0];
   btn.onclick= function(){
      input.style.backgroundColor = ‘blue‘
}
//input背景变色
var input = document.querySelectorAll(‘#input‘)[0];
   var btn = document.querySelectorAll(‘button‘)[0];
   btn.onclick= function(){
      input.style.backgroundColor = ‘blue‘
}

•  //确认密码
      function passwordConfirm() {
          var input = confirm.querySelectorAll(‘input‘)[0];
  //  var inputValue = confirm.querySelectorAll(‘input‘)[0].value;
  //inputValue为初始化密码栏的值，理清楚顺序！
          var span = confirm.querySelectorAll(‘span‘)[0];
          //var firstP = password.querySelectorAll(‘input‘)[0];
          var firstP = password.querySelectorAll(‘input‘)[0];
          //聚焦时
          input.onfocus = function () {
              span.innerHTML = ‘请再次输入密码‘;
          }
          //离开输入框时
          input.onblur = function () {
              var cPassword = input.value;
              if(cPassword != ‘‘){
                  if ( cPassword == firstP.value ) {
                      span.innerHTML = ‘密码一致‘;
                      change(span, input, true)
                  } else {
                      span.innerHTML = ‘两次密码不一样‘
                      change(span, input, false)
                  }
              }else{
                  span.innerHTML = ‘密码不能为空‘;
                  change(span, input, false)
              }
          }
      }

   

iFE-30 笔记

原文：http://www.cnblogs.com/huangxingyuan/p/IFE.html