let params = Object.assign({},obj,obj1)
//花括号{ }叫目标对象,后面的obj、obj1是源对象。对象合并是指:将源对象里面的属性添加到目标对象中去,若两者的属性名有冲突,后面的将会覆盖前面的
var obj1 = { test1: 1 }
var obj2 = { test12: 1 }
var params = Object.assign({}, obj1, obj2)
console.log(params)
let params = Object.assign({},obj,obj1)