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Commita3418ca

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Translate faq/design.html#how-fast-are-exceptions
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‎faq/design.po‎

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@@ -421,27 +421,38 @@ msgstr ""
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#:../../faq/design.rst:233
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msgid"How fast are exceptions?"
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msgstr""
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msgstr"例外處理有多快？"
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#:../../faq/design.rst:235
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msgid""
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"A try/except block is extremely efficient if no exceptions are raised. "
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"Actually catching an exception is expensive. In versions of Python prior to "
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"2.0 it was common to use this idiom::"
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msgstr""
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"如果沒有例外被丟出，一個 try/except 區塊是非常有效率的。事實上，抓捕例外要付"
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"出昂貴的代價。在 Python 2.0 以前，這樣使用是相當常見的：\n"
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"\n"
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"::"
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#:../../faq/design.rst:245
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msgid""
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"This only made sense when you expected the dict to have the key almost all "
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"the time. If that wasn't the case, you coded it like this::"
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msgstr""
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"這只有在你預料這個字典大多數時候都有鍵的時候才合理。如果並非如此，你應該寫"
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"成：\n"
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"\n"
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"::"
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#:../../faq/design.rst:253
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msgid""
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"For this specific case, you could also use ``value = dict.setdefault(key, "
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"getvalue(key))``, but only if the ``getvalue()`` call is cheap enough "
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"because it is evaluated in all cases."
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msgstr""
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"單就這個情況來說，你也可以用 ``value = dict.setdefault(key, "
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"getvalue(key))``，不過只有在 ``getvalue()`` 代價不大的時候才能用，畢竟他每次"
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"都會被執行。"
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#:../../faq/design.rst:259
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msgid"Why isn't there a switch or case statement in Python?"

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