Golang与python线程详解及简单实例

var sum intvar cccc intvar m *sync.Mutexfunc Count1(i int, ch chan int) {  for j := 0; j < 100000; j++ {   cccc = cccc + 1  }  ch <- cccc}func main() {  m = new(sync.Mutex)  ch := make(chan int, 15)  for i := 0; i < 15; i++ {   go Count1(i, ch)  }  for i := 0; i < 15; i++ {   select {   case msg := <-ch:     fmt.Println(msg)   }  }}

func Count1(i int, ch chan int) {  m.Lock()  for j := 0; j < 100000; j++ {   cccc = cccc + 1  }  ch <- cccc  m.Unlock()}

count = 0def sumCount(temp):  global count  for i in range(temp):    count = count + 1li = []for i in range(15):  th = threading.Thread(target=sumCount, args=(1000000,))  th.start()  li.append(th)for i in li:  i.join()print(count)

mutex = threading.Lock()count = 0def sumCount(temp):  global count  mutex.acquire()  for i in range(temp):    count = count + 1  mutex.release()li = []for i in range(15):  th = threading.Thread(target=sumCount, args=(1000000,))  th.start()  li.append(th)for i in li:  i.join()print(count)