获取点击坐标

var myBody = document.body
myBody.addEventListener("click", function(event){
　event = event || window.event
　var pageX = event.pageX
  var pageY = event.pageY
  if(pageX === undefined) {
    pageX = event.clientX + (document.body.scrollLeft || document.documentElement.scrollLeft)
  }
  if(pageY === undefined) {
    pageY = event.clientY + (document.body.scrollTop || document.documentElement.scrollTop)
  }
  console.log(`Page coordinates: ${pageX},${pageY}`)
})