更新

Python-100-Days/Day66-75/code/coroutine01.py

@@ -0,0 +1,27 @@
+from time import sleep
+
+
+def countdown_gen(n, consumer):
+    consumer.send(None)
+    while n > 0:
+        consumer.send(n)
+        n -= 1
+    consumer.send(None)
+
+
+def countdown_con():
+    while True:
+        n = yield
+        if n:
+            print(f'Countdown {n}')
+            sleep(1)
+        else:
+            print('Countdown Over!')
+
+
+def main():
+    countdown_gen(5, countdown_con())
+
+
+if __name__ == '__main__':
+    main()