大约有 40,000 项符合查询结果（耗时：0.1003秒） [XML]
Android - custom UI with custom attributes
...
</declare-styleable>
</resources>
Basically you have to set up one <declare-styleable /> for your view that contains all your custom attributes (here just one). I never found a full list of possible types, so you need to look at the source for one I guess. Types that I know ...
Why use non-member begin and end functions in C++11?
Every standard container has a begin and end method for returning iterators for that container. However, C++11 has apparently introduced free functions called std::begin and std::end which call the begin and end member functions. So, instead of writing
...
Iterate over object attributes in python
..._', '__module__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', '__weakref__', 'bar', 'foo', 'func']
You can always filter out the special methods by using a list comprehension.
>>> [a for a in dir(obj) if not a.startswi...
How to get first character of a string in SQL?
...VARCHAR(20) = 'This is some string'
DECLARE @Result NVARCHAR(20)
Either
SET @Result = SUBSTRING(@SomeString, 2, 3)
SELECT @Result
@Result = his
or
SET @Result = LEFT(@SomeString, 6)
SELECT @Result
@Result = This i
s...
Why is there “data” and “newtype” in Haskell? [duplicate]
...*
Used to create higher level concept based on existing type with distinct set of supported operations or that is not interchangeable with original type (example: Meter, Cm, Feet is Double)
type - creates an alternative name (synonym) for a type (like typedef in C)
No value constructors
No field...
Java split() method strips empty strings at the end? [duplicate]
...
2 Answers
2
Active
...
C++中判断文件、目录是否存在的几种方法 - C/C++ - 清泛网 - 专注C/C++及内核技术
...入流的时候，如果文件不存在则流创建失败。
ifstream fin("hello.txt");
if (!fin)
{
std::cout << "can not open this file" << endl;
这是c++中最常用的方式。
二、File
C中也是同样道理，我们可是File的相关操作。
File* fh = fopen("hello","r");...
调用空智能指针对象的函数，Windows及Linux行为解析 - C/C++ - 清泛网 - 专...
调用空智能指针对象的函数，Windows及Linux行为解析empty_shared_ptr_call先看结论：Windows下可以调用空智能指针对象的函数，但是函数中访问目标对象的成员变量会崩溃，this指针为nullptr；Linux下Debug版本及不开优化版本也能正常运行...
Path.Combine absolute with relative path strings
... editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
...
Printing the correct number of decimal points with cout
...
With <iomanip>, you can use std::fixed and std::setprecision
Here is an example
#include <iostream>
#include <iomanip>
int main()
{
double d = 122.345;
std::cout << std::fixed;
std::cout << std::setprecision(2);
std::cout <<...