Updates 字典.md

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514678493 · Nov 12, 2019 · 6b27038 · 6b27038
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commit 6b27038
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diff --git a/字典.md b/字典.md
@@ -12,3 +12,5 @@
 
 del 元组\[key\] 删除
 
+keys\(\) 取出全部key
+