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``` typescript /* 结论:返回值限制为T并非User对象 我们都知道函数有返回必定要指定返回类型,函数指定返回的类型是T,T 是 User 的子类型 这时函数返回一个对象而指定的返回类型为子类型,所以就报错了 */ // 第一种指定返回类型T改为User type User = { id: number; kind: string; }; function makeCustomer(u: T): User { return { id: u.id,...

I have solved it There is no other way, force it, roll one, and then roll back i think i was crazy, lol ```javascript const onInit = (swiper: any) =>...