你不需要另一個互斥鎖，如果你只是在 int* 類型上操作，你可以一起拋棄互斥鎖并使用 atomic.*type shared struct {    sharedCounter    int64 // member shared between multiple goroutines, protected by mutex    exclusiveCounter int64 // member exclusive of one goroutine -- is mutex needed?}func (s *shared) readCounter() int64 {    return atomic.LoadInt64(&s.sharedCounter)}func (s *shared) setCounter(i int64) {    atomic.StoreInt64(&s.sharedCounter, i)}playground