[python/zh-cn] Empty tuple is also False (#4297)

1 files changed, 2 insertions, 1 deletions

diff --git a/zh-cn/python-cn.html.markdown b/zh-cn/python-cn.html.markdown
index 6c5556fc..4469443f 100644
--- a/zh-cn/python-cn.html.markdown
+++ b/zh-cn/python-cn.html.markdown
@@ -129,12 +129,13 @@ None  # => None
 "etc" is None  # => False
 None is None  # => True
 
-# None，0，空字符串，空列表，空字典都算是False
+# None，0，空字符串，空列表，空字典，空元组都算是False
 # 所有其他值都是True
 bool(0)  # => False
 bool("")  # => False
 bool([]) # => False
 bool({}) # => False
+bool(()) # => False
 
 
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