大约有 13,700 项符合查询结果(耗时:0.0215秒) [XML]

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When would anyone use a union? Is it a remnant from the C-only days?

...For example, let's say you want to create your own Variant type: struct my_variant_t { int type; union { char char_value; short short_value; int int_value; long long_value; float float_value; double double_value; void* ptr_value; }...
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Python division

...t: >>> float(10 - 20) / (100 - 10) -0.1111111111111111 or from __future__ import division, which the forces / to adopt Python 3.x's behavior that always returns a float. >>> from __future__ import division >>> (10 - 20) / (100 - 10) -0.1111111111111111 ...
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How to generate keyboard events in Python?

...om ctypes import wintypes import time user32 = ctypes.WinDLL('user32', use_last_error=True) INPUT_MOUSE = 0 INPUT_KEYBOARD = 1 INPUT_HARDWARE = 2 KEYEVENTF_EXTENDEDKEY = 0x0001 KEYEVENTF_KEYUP = 0x0002 KEYEVENTF_UNICODE = 0x0004 KEYEVENTF_SCANCODE = 0x0008 MAPVK_VK_TO_VSC = 0 # ...
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How to read a file in reverse order?

...A correct, efficient answer written as a generator. import os def reverse_readline(filename, buf_size=8192): """A generator that returns the lines of a file in reverse order""" with open(filename) as fh: segment = None offset = 0 fh.seek(0, os.SEEK_END) file...
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How to iterate through two lists in parallel?

... And to zip until both iterators are exhausted, you would use itertools.zip_longest. Python 2 In Python 2, zip returns a list of tuples. This is fine when foo and bar are not massive. If they are both massive then forming zip(foo,bar) is an unnecessarily massive temporary variable, and should be r...
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How do you do a limit query in JPQL or HQL?

...SQL (using MsSql2008Dialect). This is good. – Thierry_S Nov 4 '13 at 17:00 17 @Rachel With setMax...
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How can I mock requests and the response?

...mock # This is the class we want to test class MyGreatClass: def fetch_json(self, url): response = requests.get(url) return response.json() # This method will be used by the mock to replace requests.get def mocked_requests_get(*args, **kwargs): class MockResponse: d...
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google mock分享(全网最全最好的gmock文档,没有之一) - C/C++ - 清泛网 ...

...oogle mock分享(全网最全最好的gmock文档,没有之一)google_mockContentMatcher(匹配器)基数(Cardinalities)行为(Actions)序列(Sequences)Google Mock 入门概述Google Mock使用Mock实践Google Mock Cookbook什么是Mock?Google Moc Content ...
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Can we define implicit conversions of enums in c#?

...rmined from reflection /// </summary> private string _name; /// <summary> /// The DescriptionAttribute, if any, linked to the declaring field /// </summary> private DescriptionAttribute _descriptionAttribute; /// <summary...
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Change a Django form field to a hidden field

...get the value. also you may prefer to use in the view: form.fields['field_name'].widget = forms.HiddenInput() but I'm not sure it will protect save method on post. Hope it helps. share | improv...