From e99722ac373e702c1147c652fd01dda31b2f3c92 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=BC=A0=E8=99=9A=E5=B9=B3?=
 <8437069+zhang-xuping@user.noreply.gitee.com>
Date: Sat, 2 Jan 2021 22:54:18 +0800
Subject: [PATCH 1/2] =?UTF-8?q?=E6=96=B0=E5=BB=BA=20=E7=AC=AC=E4=B8=89?=
 =?UTF-8?q?=E5=91=A8-=E7=AC=AC=E4=B8=89=E8=8A=82-=E4=BD=9C=E4=B8=9A?=
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---
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diff --git "a/\347\254\254\344\272\214\346\234\237\350\256\255\347\273\203\350\220\245/1\347\217\255/1\347\217\255_\345\230\230\345\230\230/\347\254\254\344\270\211\345\221\250-\347\254\254\344\270\211\350\212\202-\344\275\234\344\270\232\346\217\220\344\272\244/.keep" "b/\347\254\254\344\272\214\346\234\237\350\256\255\347\273\203\350\220\245/1\347\217\255/1\347\217\255_\345\230\230\345\230\230/\347\254\254\344\270\211\345\221\250-\347\254\254\344\270\211\350\212\202-\344\275\234\344\270\232\346\217\220\344\272\244/.keep"
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-- 
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From ae20b01b83de6cf3f9987199e9deaa92dac62b85 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=BC=A0=E8=99=9A=E5=B9=B3?=
 <8437069+zhang-xuping@user.noreply.gitee.com>
Date: Sat, 2 Jan 2021 22:54:33 +0800
Subject: [PATCH 2/2] =?UTF-8?q?=E7=AC=AC=E4=B8=89=E5=91=A8=E7=AC=AC?=
 =?UTF-8?q?=E4=B8=89=E8=8A=82=E8=AF=BE=E8=AF=BE=E5=90=8E=E4=BD=9C=E4=B8=9A?=
MIME-Version: 1.0
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Content-Transfer-Encoding: 8bit

---
 .../21.01.02.py"                              | 66 +++++++++++++++++++
 1 file changed, 66 insertions(+)
 create mode 100644 "\347\254\254\344\272\214\346\234\237\350\256\255\347\273\203\350\220\245/1\347\217\255/1\347\217\255_\345\230\230\345\230\230/\347\254\254\344\270\211\345\221\250-\347\254\254\344\270\211\350\212\202-\344\275\234\344\270\232\346\217\220\344\272\244/21.01.02.py"

diff --git "a/\347\254\254\344\272\214\346\234\237\350\256\255\347\273\203\350\220\245/1\347\217\255/1\347\217\255_\345\230\230\345\230\230/\347\254\254\344\270\211\345\221\250-\347\254\254\344\270\211\350\212\202-\344\275\234\344\270\232\346\217\220\344\272\244/21.01.02.py" "b/\347\254\254\344\272\214\346\234\237\350\256\255\347\273\203\350\220\245/1\347\217\255/1\347\217\255_\345\230\230\345\230\230/\347\254\254\344\270\211\345\221\250-\347\254\254\344\270\211\350\212\202-\344\275\234\344\270\232\346\217\220\344\272\244/21.01.02.py"
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index 00000000..fdcf4f27
--- /dev/null
+++ "b/\347\254\254\344\272\214\346\234\237\350\256\255\347\273\203\350\220\245/1\347\217\255/1\347\217\255_\345\230\230\345\230\230/\347\254\254\344\270\211\345\221\250-\347\254\254\344\270\211\350\212\202-\344\275\234\344\270\232\346\217\220\344\272\244/21.01.02.py"
@@ -0,0 +1,66 @@
+# #问题一，练习作用域之间的转换
+# total = 0
+# def sum(a, b):
+#     total = a + b
+#     print("函数内是局部变量：", total)
+#     return total
+# print(sum(5, 10))
+# print("函数外是全局变量：", total)
+#
+# total1 = 1
+# def func():
+#     global total1
+#     print(total1)
+#     total1 = 2
+#     print(total1)
+# print(func())
+# print(total1)
+#
+# def a():
+#     total = 1
+#     def b():
+#         nonlocal total
+#         total = 3
+#         print(total)
+#         return b
+#     b()
+#     print(total)
+# a()
+#
+# #问题二，实现一个装饰器，用来输出函数的执行时间
+# import time
+# def clock_deco(func):
+#     def wrap(*args, **kwargs):
+#         start_time = time.time()
+#         result = func(*args, **kwargs)
+#         end_time = time.time()
+#         print(f"{func.__name__} 执行时长为：{format(end_time - start_time, '.2f')}s")
+#         return result
+#     return wrap
+#
+# @clock_deco
+# def cool(a, b):
+#     num = 0
+#     while True:
+#         if num >= a ** b:
+#             break
+#         num += 1
+#
+# cool(5, 10)
+#
+#问题三，使用装饰器来为斐波那契函数增加缓存
+def cache_deco(func):
+    a = {}
+    def wrap(*args, **kwargs):
+        if args not in a.keys():
+            a[args] = func(*args, **kwargs)
+        return a[args]
+    return wrap
+
+@ cache_deco
+def fib(n):
+    if n <= 1:
+        return 1
+    return fib(n-1) + fib(n-2)
+
+print(fib(10))
-- 
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