<input id="name" bindFocus="handleFocus" bindInput="handleInput" />
<input password id="password" bindFocus="handleFocus" bindInput="handleInput" />

handleFocus (e) {
  if (e.currentTarget.id == "password") {
    this.checkName();
  }
}

// 其实为什么不用bindblur输入框失焦时判断呢