let Arr = [
		{id:1,name:'张飞'},
		{id:2,name:'关羽'},
		{id:3,name:'刘备'},
		{id:4,name:'嘟嘟'},
		]
		Arr.forEach((element,index) => {
		  console.log(element,"element")
		
		  if (element.id == '4') {
		    console.log(index)
		    Arr.splice(index,1)
		  }
		});