mouseDown事件>focus事件>mouseup事件>click事件

mouseDown>focus>mouseup>click

mousedown=()=>{
        console.log('mousedown')
    }
    mouseup=()=>{
        console.log('mouseup')
    }
    focusOn=()=>{
        console.log('focusOn')
    }
    clickOn=()=>{
        console.log('clickOn')
    }
    blur=()=>{
        console.log('blur')
    }


**控制台输出如下**
      mousedown
      focusOn
      mouseup
      clickOn