LC_ALL, LC_COLLATE, LC_CTYPE, LC_MONETARY, LC_NUMERIC, LC_TIME

来自cppreference.com

This page has been machine-translated from the English version of the wiki using Google Translate.

The translation may contain errors and awkward wording. Hover over text to see the original version. You can help to fix errors and improve the translation. For instructions click here.

Click here for the English version of this page

 
C++
 
本地化库
语言环境方面
Original:
Locales and facets
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
locale
字符分类
Original:
Character classification
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
转换
Original:
Conversions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
wstring_convert（C++11）
wbuffer_convert（C++11）
小面类的基类
Original:
Facet category base classes
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
小面类
Original:
Facet categories
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
特定于语言环境的方面
Original:
Locale-specific facets
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
代码转换方面
Original:
Code conversion facets
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
codecvt_utf8（C++11）
codecvt_utf16（C++11）
codecvt_utf8_utf16（C++11）
codecvt_mode（C++11）
C语言环境
Original:
C locale
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
LC_ALL
LC_COLLATE
LC_CTYPE
LC_MONETARY
LC_NUMERIC
LC_TIME
 
Defined in header <clocale>
#define LC_ALL      /*implementation defined*/
#define LC_COLLATE  /*implementation defined*/
#define LC_CTYPE    /*implementation defined*/
#define LC_MONETARY /*implementation defined*/
#define LC_NUMERIC  /*implementation defined*/
#define LC_TIME     /*implementation defined*/
上面的宏常量扩展到整数常量表达式不同的值，是适合作为第一个参数的std::setlocale.
Original:
Each of the above macro constants expand to integer constant expressions with distinct values that are suitable for use as the first argument of std::setlocale.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
常数
Original:
Constant
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
 Explanation
LC_ALL
选择整个C语言环境
Original:
selects the entire C locale
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
LC_COLLATE
选择的C语言环境的整理分类
Original:
selects the collation category of the C locale
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
LC_CTYPE
选择C语言环境的的字符类别划分的
Original:
selects the character classification category of the C locale
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
LC_MONETARY
选择货币格式类别的C语言环境
Original:
selects the monetary formatting category of the C locale
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
LC_NUMERIC
选择的数字格式类别的C语言环境
Original:
selects the numeric formatting category of the C locale
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
LC_TIME
选择时间格式类别的C语言环境
Original:
selects the time formatting category of the C locale
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
其他宏常量，开始与LC_的名字，然后由至少一个大写字母，可以定义在<clocale>。例如，POSIX规范要求LC_MESSAGES和GNU C库还定义LC_PAPER，LC_NAME LC_ADDRESS LC_TELEPHONE，LC_MEASUREMENT，LC_IDENTIFICATION.
Original:
Additional macro constants, with names that begin with LC_ followed by at least one uppercase letter, may be defined in <clocale>. For example, the POSIX specification requires LC_MESSAGES and the GNU C library additionally defines LC_PAPER, LC_NAME, LC_ADDRESS, LC_TELEPHONE, LC_MEASUREMENT, and LC_IDENTIFICATION.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[编辑] 为例

#include <cstdio>
#include <clocale>
#include <ctime>
#include <cwchar>
int main()
{
    std::setlocale(LC_ALL, "en_US.UTF-8"); // the C locale will be the UTF-8 enabled English
    std::setlocale(LC_NUMERIC, "de_DE");   // decimal dot will be German
    std::setlocale(LC_TIME, "ja_JP");      // date/time formatting will be Japanese
    wchar_t str[100];
    std::time_t t = std::time(NULL);
    std::wcsftime(str, 100, L"%A %c", std::localtime(&t));
    std::wprintf(L"Number: %.2f\nDate: %Ls\n", 3.14, str);
}

Output: 

Number: 3,14
Date: 月曜日 2011年12月19日 18時04分40秒

[编辑] 另请参阅
获取和设置当前的C语言环境
Original:
gets and sets the current C locale
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

（函数） [edit]
多态的文化差异方面的封装
Original:
set of polymorphic facets that encapsulate cultural differences
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

（类） [edit]
来自“http://zh.cppreference.com/mwiki/index.php?title=cpp/locale/LC_categories&oldid=28488”