鼠标单击+按功能键

var myBody = document.body
myBody.addEventListener("click",function(event){
  event = event || window.event
  if(event.shiftKey){
    console.log('press shift')
  } else {
    console.log('shift release')
  }
  if(event.ctrlKey){
    console.log('press ctrl')
  } else {
    console.log('ctrl release')
  }
  if(event.altKey){
    console.log('press alt')
  }else {
    console.log('alt release')
  }
  if(event.metaKey){
    console.log('press meta')
  }else{
    console.log('meta release')
  }
})