std::tolower
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. |
| Defined in header <cctype>
|
||
| int tolower( int ch ); |
||
。给定的字符转换为小写根据当前安装的C语言环境的字符转换定义的规则.
Original:
Converts the given character to lowercase according to the character conversion rules defined by the currently installed C locale.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
[编辑] 。参数。
| ch | - | 。要转换的字符。
Original: character to be converted The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
===。 返回值。===
。小写版本的小写版本
ch或改性ch如果没有被列在目前的C语言环境.Original:
Lowercase version of
ch or unmodified ch if no lowercase version is listed in 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.
You can help to correct and verify the translation. Click here for instructions.
[编辑] 。为例。
#include <iostream> #include <cctype> #include <clocale> int main() { char c = '\xb4'; // the character Ž in ISO-8859-15 // but ´ (acute accent) in ISO-8859-1 std::setlocale(LC_ALL, "en_US.iso88591"); std::cout << std::hex << std::showbase; std::cout << "in iso8859-1, tolower('0xb4') gives " << std::tolower(c) << '\n'; std::setlocale(LC_ALL, "en_US.iso885915"); std::cout << "in iso8859-15, tolower('0xb4') gives " << std::tolower(c) << '\n'; }
Output:
in iso8859-1, tolower('0xb4') gives 0xb4
in iso8859-15, tolower('0xb4') gives 0xb8[编辑] 。另请参阅。
| 字符转换为大写 Original: converts a character to uppercase The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数） | |
| converts a character to lowercase using the ctype facet of a locale （函数模板） | |
| 一个宽字符转换为小写 Original: converts a wide character to lowercase The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数） | |
| C documentation for tolower
| |
