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Expand file tree Collapse file tree Original file line number Diff line number Diff line change @@ -397,16 +397,18 @@ msgid ""
397397"creates an empty dictionary, a data structure that we discuss in the next "
398398"section."
399399msgstr ""
400+ "花括号或者 ;func:`set` 方法可以用来创建集合。注意:如果要创建空集合,则只能用 ``set()``,不能用 "
401+ "``{}``,因为后者创建的是空字典,这是我们下一节会讨论的数据结构。"
400402
401403#: ../../tutorial/datastructures.rst:451
402404msgid "Here is a brief demonstration::"
403- msgstr ""
405+ msgstr "以下是一些简单的示例: "
404406
405407#: ../../tutorial/datastructures.rst:476
406408msgid ""
407409"Similarly to :ref:`list comprehensions <tut-listcomps>`, set comprehensions "
408410"are also supported::"
409- msgstr ""
411+ msgstr "类似于列表推导式 :ref:`list comprehensions <tut-listcomps>`,集合也支持推导式形式 :: "
410412
411413#: ../../tutorial/datastructures.rst:487
412414msgid "Dictionaries"
@@ -425,6 +427,10 @@ msgid ""
425427"modified in place using index assignments, slice assignments, or methods "
426428"like :meth:`append` and :meth:`extend`."
427429msgstr ""
430+ "另一个非常有用的Python內建数据类型是 *字典* (参见 :ref:`typesmapping`)。字典在其他语言里可能会被叫做 *联合内存* 或 "
431+ "*联合数组*。与以连续整数为索引的序列不同,字典是以 *关键字* "
432+ "为索引,关键字可以是任意不可变类型,通常是字符串或数字。如果一个元组只包含字符串,数字或元组,那么这个元组也可以作关键字。但如果元组直接或间接地包含了可变对象,那么它就不能作关键字。列表不能用做关键字,因为列表可以通过索引,切片或"
433+ " :meth:`append` 和 :meth:`extend`之类的方法来改变。"
428434
429435#: ../../tutorial/datastructures.rst:500
430436msgid ""
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