OSUser
diff --git a/‎215.md‎
Lines changed: 1 addition & 1 deletion b/‎215.md‎
Lines changed: 1 addition & 1 deletion
@@ -253,7 +253,7 @@ yield语句的作用，就是在调用的时候返回相应的值。详细剖析
 
 ------
 
-[总目录](./index.md)&nbsp;&nbsp;&nbsp;|&nbsp;&nbsp;&nbsp;[上节：迭代器](./214.md)&nbsp;&nbsp;&nbsp;|&nbsp;&nbsp;&nbsp;[下节：错误和异常(1)](./216.md)
+[总目录](./index.md)&nbsp;&nbsp;&nbsp;|&nbsp;&nbsp;&nbsp;[上节：迭代器](./214.md)&nbsp;&nbsp;&nbsp;|&nbsp;&nbsp;&nbsp;[下节：上下文管理器](./235.md)
 
 如果你认为有必要打赏我，请通过支付宝：**[email protected]**,不胜感激。