Update p15_interpolating_variables_in_strings.rst

jumploop · web-flow · commit 69850e4962d4 · 2021-06-05T21:32:09.000+08:00
'%(name) has %(n) messages.' % vars()格式化错误，应该是'%{name} has %{n} messages.' % vars()
diff --git a/source/c02/p15_interpolating_variables_in_strings.rst b/source/c02/p15_interpolating_variables_in_strings.rst
@@ -106,7 +106,7 @@ Python并没有对在字符串中简单替换变量值提供直接的支持。
 
     >>> name = 'Guido'
     >>> n = 37
-    >>> '%(name) has %(n) messages.' % vars()
+    >>> '%{name} has %{n} messages.' % vars()
     'Guido has 37 messages.'
     >>>
 
