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Windows下如何判断Win32 or x64？ - C/C++ - 清泛网 - 专注C/C++及内核技术
Windows下如何判断Win32 or x64？MSDN 里说，VC 有 3 个预处理常量，分别是 _WIN32，_WIN64，WIN32。这三个常量如何使用呢？看起来简单，其实是很困惑的。 在 Win3...MSDN 里说，VC 有 3 个预处理常量，分别是 _WIN32，_WIN64，WIN32。这三个...
Get list of a class' instance methods
...10:in <main>: undefined method instance_methods for #<TestClass:0x96b9d20> (NoMethodError)
– Vladimir Tsukanov
Jun 24 '11 at 14:04
...
How to detect Windows 64-bit platform with .NET?
... suggest, starting at .NET Framework 4.0, you can just check Environment.Is64BitOperatingSystem.
IntPtr.Size won't return the correct value if running in 32-bit .NET Framework 2.0 on 64-bit Windows (it would return 32-bit).
As Microsoft's Raymond Chen describes, you have to first check if running i...
Show a number to two decimal places
... // 4
echo round(3.6, 0); // 4
echo round(1.95583, 2); // 1.96
echo round(1241757, -3); // 1242000
echo round(5.045, 2); // 5.05
echo round(5.055, 2); // 5.06
?>
Example #2 mode examples
<?php
echo round(9.5, 0, PHP_ROUND_HALF_UP); // 10
echo r...
How do I change screen orientation in the Android emulator?
...
84
Android Emulator Shortcuts
Ctrl+F11 Switch layout orientation portrait/landscape backwar...
Base64 Java encode and decode a string [duplicate]
I want to encode a string into base64 and transfer it through a socket and decode it back.
6 Answers
...
Regular expression to match numbers with or without commas and decimals in text
...e sure the whole thing wasn't blank.
Tested here: http://rextester.com/YPG96786
This will allow things like:
100,000
999.999
90.0009
1,000,023.999
0.111
.111
0
It will block things like:
1,1,1.111
000,001.111
999.
0.
111.110000
1.1.1.111
9.909,888
There are several ways to make this regex simpler...
How to format a phone number with jQuery
... key == 46 ||
(key >= 48 && key <= 57) ||
(key >= 96 && key <= 105));
})
.on('focus', function() {
phone = $(this);
if (phone.val().length === 0) {
phone.val('(');
} else {
var val = phone.val();
phone.val('').val(val); // Ensure cursor remains...
Python 3: ImportError “No Module named Setuptools”
...
96
EDIT: Official setuptools dox page:
If you have Python 2 >=2.7.9 or Python 3 >=3.4 in...
Convert an image (selected by path) to base64 string
How do you convert an image from a path on the user's computer to a base64 string in C#?
12 Answers
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