var object1 = {APPORT_ID:"1",EMP_NAME:"2",OP_APPLY_NO:""
}
var  Object2 = {APPORT_ID_2:"1-2",EMP_NAME:"2-2",OP_APPLY_NO:"3-2"
};
// Object2会覆盖Bin1
var Bin1 = angular.copy(object1); //要先拷贝一下，否则会改变原对象的数据
var Bin = angular.extend(Bin1,Object2);
console.log(object1);
console.log(Object2);
console.log(Bin);