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# Zephyr Waitzman <[email protected]>, 2018
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# Kder <[email protected]>, 2018
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# zkonge, 2019
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# chen_chao <[email protected]>, 2019
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# MuSheng Chen <[email protected]>, 2019
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# Freesand Leo <[email protected]>, 2019
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# chen_chao <[email protected]>, 2019
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#
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#, fuzzy
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msgid ""
@@ -20,7 +20,7 @@ msgstr ""
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"Report-Msgid-Bugs-To: \n"
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"POT-Creation-Date: 2019-01-01 10:14+0900\n"
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"PO-Revision-Date: 2017-02-16 17:44+0000\n"
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"Last-Translator: Freesand Leo <yuqinju@163.com>, 2019\n"
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"Last-Translator: chen_chao <wenbushi@gmail.com>, 2019\n"
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"Language-Team: Chinese (China) (https://www.transifex.com/python-doc/teams/5390/zh_CN/)\n"
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"MIME-Version: 1.0\n"
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"Content-Type: text/plain; charset=UTF-8\n"
@@ -1333,53 +1333,55 @@ msgid ""
13331333
"useful in functional-style code because they save you from writing trivial "
13341334
"functions that perform a single operation."
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msgstr ""
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"前面已经提到了 :mod:`operator` 模块。它包含一系列对应于 Python "
1337+
"操作符的函数。在函数式风格的代码中，这些函数通常很有用，可以帮你省下不少时间，避免写一些琐碎的仅仅执行一个简单操作的函数。"
13361338

13371339
#: ../../howto/functional.rst:1087
13381340
msgid "Some of the functions in this module are:"
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msgstr ""
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msgstr "这个模块里的一些函数："
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13411343
#: ../../howto/functional.rst:1089
13421344
msgid ""
13431345
"Math operations: ``add()``, ``sub()``, ``mul()``, ``floordiv()``, ``abs()``,"
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" ..."
1345-
msgstr ""
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msgstr "数学运算： ``add()``，``sub()``，``mul()``，``floordiv()``，``abs()``， ..."
13461348

13471349
#: ../../howto/functional.rst:1090
13481350
msgid "Logical operations: ``not_()``, ``truth()``."
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msgstr ""
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msgstr "逻辑运算： ``not_()``，``truth()``。"
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13511353
#: ../../howto/functional.rst:1091
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msgid "Bitwise operations: ``and_()``, ``or_()``, ``invert()``."
1353-
msgstr ""
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msgstr "位运算： ``and_()``，``or_()``，``invert()``。"
13541356

13551357
#: ../../howto/functional.rst:1092
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msgid ""
13571359
"Comparisons: ``eq()``, ``ne()``, ``lt()``, ``le()``, ``gt()``, and ``ge()``."
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msgstr ""
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msgstr "比较： ``eq()``，``ne()``，``lt()``，``le()``，``gt()``，和 ``ge()``。"
13591361

13601362
#: ../../howto/functional.rst:1093
13611363
msgid "Object identity: ``is_()``, ``is_not()``."
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msgstr ""
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msgstr "确认对象： ``is_()``，``is_not()``。"
13631365

13641366
#: ../../howto/functional.rst:1095
13651367
msgid "Consult the operator module's documentation for a complete list."
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msgstr ""
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msgstr "全部函数列表可以参考 operator 模块的文档。"
13671369

13681370
#: ../../howto/functional.rst:1099
13691371
msgid "Small functions and the lambda expression"
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msgstr ""
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msgstr "小函数和 lambda 表达式"
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13721374
#: ../../howto/functional.rst:1101
13731375
msgid ""
13741376
"When writing functional-style programs, you'll often need little functions "
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"that act as predicates or that combine elements in some way."
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msgstr ""
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msgstr "编写函数式风格程序时，你会经常需要很小的函数，作为谓词函数或者以某种方式来组合元素。"
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13781380
#: ../../howto/functional.rst:1104
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msgid ""
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"If there's a Python built-in or a module function that's suitable, you don't"
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" need to define a new function at all::"
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msgstr ""
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msgstr "如果合适的 Python 内置的或者其他模块中的函数，你就一点也不需要定义新的函数::"
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#: ../../howto/functional.rst:1110
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msgid ""
@@ -1389,18 +1391,20 @@ msgid ""
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"parameters, and creates an anonymous function that returns the value of the "
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"expression::"
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msgstr ""
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"如果不存在你需要的函数，你就必须自己编写。一个编写小函数的方式是使用 :keyword:`lambda` 表达式。``lambda`` "
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"接受一组参数以及组合这些参数的表达式，它会创建一个返回表达式值的匿名函数::"
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13931397
#: ../../howto/functional.rst:1119
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msgid ""
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"An alternative is to just use the ``def`` statement and define a function in"
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" the usual way::"
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msgstr ""
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msgstr "另一种替代方案就是通常的使用 ``def`` 语句来定义函数::"
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#: ../../howto/functional.rst:1128
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msgid ""
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"Which alternative is preferable? That's a style question; my usual course "
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"is to avoid using ``lambda``."
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msgstr ""
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msgstr "哪一种更受青睐呢？这是一个风格问题；我通常的做法是避免使用 ``lambda``。"
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14051409
#: ../../howto/functional.rst:1131
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msgid ""
@@ -1411,65 +1415,68 @@ msgid ""
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" ``lambda`` statement, you'll end up with an overly complicated expression "
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"that's hard to read. Quick, what's the following code doing? ::"
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msgstr ""
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"我这么偏好的一个原因是，``lambda`` 能够定义的函数非常受限。函数的结果必须能够作为单独的表达式来计算，这意味着你不能使用多路 ``if... "
1419+
"elif... else`` 比较，或者 ``try... except`` 语句。如果你尝试在 ``lambda`` "
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"语句中做太多事情，你最终会把表达式过于复杂以至于难以阅读。你能快速的说出下面的代码做了什么事情吗？::"
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14151422
#: ../../howto/functional.rst:1141
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msgid ""
14171424
"You can figure it out, but it takes time to disentangle the expression to "
14181425
"figure out what's going on. Using a short nested ``def`` statements makes "
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"things a little bit better::"
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msgstr ""
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msgstr "你可以弄明白，不过要花上时间来理清表达式来搞清楚发生了什么。使用一个简短的嵌套的 ``def`` 语句可以让情况变得更好::"
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14221429
#: ../../howto/functional.rst:1151
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msgid "But it would be best of all if I had simply used a ``for`` loop::"
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msgstr ""
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msgstr "如果我仅仅使用一个 ``for`` 循环会更好::"
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14261433
#: ../../howto/functional.rst:1157
14271434
msgid "Or the :func:`sum` built-in and a generator expression::"
1428-
msgstr ""
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msgstr "或者使用内置的 :func:`sum` 和一个生成器表达式::"
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14301437
#: ../../howto/functional.rst:1161
14311438
msgid ""
14321439
"Many uses of :func:`functools.reduce` are clearer when written as ``for`` "
14331440
"loops."
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msgstr ""
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msgstr "许多使用 :func:`functools.reduce` 的情形可以更清晰地写成 ``for`` 循环的形式。"
14351442

14361443
#: ../../howto/functional.rst:1163
14371444
msgid ""
14381445
"Fredrik Lundh once suggested the following set of rules for refactoring uses"
14391446
" of ``lambda``:"
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msgstr ""
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msgstr "Fredrik Lundh 曾经建议以下一组规则来重构 ``lambda`` 的使用:"
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14421449
#: ../../howto/functional.rst:1166
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msgid "Write a lambda function."
1444-
msgstr ""
1451+
msgstr "写一个 lambda 函数。"
14451452

14461453
#: ../../howto/functional.rst:1167
14471454
msgid "Write a comment explaining what the heck that lambda does."
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msgstr ""
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msgstr "写一句注释来说明这个 lambda 究竟干了什么。"
14491456

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#: ../../howto/functional.rst:1168
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msgid ""
14521459
"Study the comment for a while, and think of a name that captures the essence"
14531460
" of the comment."
1454-
msgstr ""
1461+
msgstr "研究一会这个注释，然后想出一个抓住注释本质的名字。"
14551462

14561463
#: ../../howto/functional.rst:1170
14571464
msgid "Convert the lambda to a def statement, using that name."
1458-
msgstr ""
1465+
msgstr "用这个名字，把这个 lambda 改写成 def 语句。"
14591466

14601467
#: ../../howto/functional.rst:1171
14611468
msgid "Remove the comment."
1462-
msgstr ""
1469+
msgstr "把注释去掉。"
14631470

14641471
#: ../../howto/functional.rst:1173
14651472
msgid ""
14661473
"I really like these rules, but you're free to disagree about whether this "
14671474
"lambda-free style is better."
1468-
msgstr ""
1475+
msgstr "我非常喜欢这些规则，不过你完全有权利争辩这种消除 lambda 的风格是不是更好。"
14691476

14701477
#: ../../howto/functional.rst:1178
14711478
msgid "Revision History and Acknowledgements"
1472-
msgstr ""
1479+
msgstr "修订记录和致谢"
14731480

14741481
#: ../../howto/functional.rst:1180
14751482
msgid ""
@@ -1478,6 +1485,9 @@ msgid ""
14781485
" Ian Bicking, Nick Coghlan, Nick Efford, Raymond Hettinger, Jim Jewett, Mike"
14791486
" Krell, Leandro Lameiro, Jussi Salmela, Collin Winter, Blake Winton."
14801487
msgstr ""
1488+
"作者要感谢以下人员对本文各种草稿给予的建议，更正和协助：Ian Bicking,Nick Coghlan, Nick Efford, Raymond "
1489+
"Hettinger, Jim Jewett, Mike Krell,Leandro Lameiro, Jussi Salmela, Collin "
1490+
"Winter, Blake Winton。"
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14821492
#: ../../howto/functional.rst:1185
14831493
msgid "Version 0.1: posted June 30 2006."

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