Merge pull request qiwsir#50 from xxxyyyzzz/patch-25

Update 119.md

Author: qiwsir

BasicPython/119.md

@@ -112,3 +112,6 @@ python中提供了一个内置函数enumerate，能够实现类似的功能
     >>> [foo(i,ele) for i,ele in enumerate(seq)]
     ['0:qiwsir', '1:qiwsir.github.io', '2:python']
 
+<hr>
+
+[首页](./index.md)&nbsp;&nbsp;&nbsp;|&nbsp;&nbsp;&nbsp;[上一讲](./118.md)&nbsp;&nbsp;&nbsp;|&nbsp;&nbsp;&nbsp;[下一讲](./120.md)