[po] auto sync bot

zhsj · zhsj · commit b7ab36e45d11 · 2019-01-17T10:34:08.000+08:00
diff --git a/reference/simple_stmts.po b/reference/simple_stmts.po
@@ -257,13 +257,17 @@ msgid ""
 "be different from the length of the assigned sequence, thus changing the "
 "length of the target sequence, if the target sequence allows it."
 msgstr ""
+"如果目标为一个切片：性和痛苦的原型表达式会被求值。 它应当产生一个可变序列对象（例如列表）。 被赋值对象应当是一个相同类型的序列对象。 "
+"接下来，下界与上界表达式如果存在的话将被求值；默认值分别为零和序列长度。 上下边界值应当为整数。 如果某一边界为负值，则会加上序列长度。 "
+"求出的边界会被裁剪至介于零和序列长度的开区间中。 最后，将要求序列对象以被赋值序列的项替换该切片。 "
+"切片的长度可能与被赋值序列的长度不同，这会在目标序列允许的情况下改变目标序列的长度。"
 
 #: ../../reference/simple_stmts.rst:237
 msgid ""
 "In the current implementation, the syntax for targets is taken to be the "
 "same as for expressions, and invalid syntax is rejected during the code "
 "generation phase, causing less detailed error messages."
-msgstr ""
+msgstr "在当前实现中，目标的句法被当作与表达式的句法相同，无效的句法会在代码生成阶段被拒绝，导致不太详细的错误信息。"
 
 #: ../../reference/simple_stmts.rst:241
 msgid ""
@@ -273,30 +277,32 @@ msgid ""
 "assigned-to variables occur left-to-right, sometimes resulting in confusion."
 "  For instance, the following program prints ``[0, 2]``::"
 msgstr ""
+"虽然赋值的定义意味着左手边与右手边的重叠是“同时”进行的（例如 ``a, b = b, a`` 会交换两个变量的值），但在赋值给变量的多项集 *之内* "
+"的重叠是从左至右进行的，这有时会令人混淆。 例如，以下程序将会打印出 ``[0, 2]``::"
 
 #: ../../reference/simple_stmts.rst:255
 msgid ":pep:`3132` - Extended Iterable Unpacking"
-msgstr ""
+msgstr ":pep:`3132` - 扩展的可迭代对象拆包"
 
 #: ../../reference/simple_stmts.rst:256
 msgid "The specification for the ``*target`` feature."
-msgstr ""
+msgstr "对 ``*target`` 特性的规范说明。"
 
 #: ../../reference/simple_stmts.rst:262
 msgid "Augmented assignment statements"
-msgstr ""
+msgstr "增强赋值语句"
 
 #: ../../reference/simple_stmts.rst:280
 msgid ""
 "Augmented assignment is the combination, in a single statement, of a binary "
 "operation and an assignment statement:"
-msgstr ""
+msgstr "增强赋值语句就是在单个语句中将二元运算和赋值语句合为一体:"
 
 #: ../../reference/simple_stmts.rst:289
 msgid ""
 "(See section :ref:`primaries` for the syntax definitions of the last three "
 "symbols.)"
-msgstr ""
+msgstr "（请参阅 :ref:`primaries` 一节了解最后三种符号的句法定义。）"
 
 #: ../../reference/simple_stmts.rst:292
 msgid ""
@@ -306,6 +312,8 @@ msgid ""
 "operands, and assigns the result to the original target.  The target is only"
 " evaluated once."
 msgstr ""
+"增强赋值语句将对目标和表达式列表求值（与普通赋值语句不同的是，前者不能为可迭代对象拆包），对两个操作数相应类型的赋值执行指定的二元运算，并将结果赋值给原始目标。"
+" 目标仅会被求值一次。"
 
 #: ../../reference/simple_stmts.rst:297
 msgid ""
@@ -316,6 +324,8 @@ msgid ""
 "a new object and assigning that to the target, the old object is modified "
 "instead."
 msgstr ""
+"增强赋值语句例如 ``x += 1`` 可以改写为 ``x = x + 1`` 获得类似但并非完全等价的效果。 在增强赋值的版本中，``x`` "
+"仅会被求值一次。 而且，在可能的情况下，实际的运算是 *原地* 执行的，也就是说并不是创建一个新对象并将其赋值给目标，而是直接修改原对象。"
 
 #: ../../reference/simple_stmts.rst:303
 msgid ""
