英文:
Problem with printing wide character in c
问题
你好，我想打印字母'å'，它在扩展ASCII中是131，据我所知，它的UTF-8代码是00E5，UTF-16中是0x00E5。然而，在下面的代码中，程序打印出了'Õ'，这不是我想要的。我不知道我做错了什么。提前谢谢。
int main(void) {wchar_t myChar = 0x00E5;wprintf(L"%lc", myChar);}
英文:
Hello I want to print the letter 'å' which is 131 in extended ascii and as far as I can see has UTF-8 code 00E5 and 0x00E5 in UTF-16. However, in the code below the program prints 'Õ' which is not what I wanted. I do not know what I have done wrong. Thanks in advance.
int main(void) {wchar_t myChar = 0x00E5;wprintf(L"%lc", myChar);}
答案1
得分: 4
我会尝试使用UTF-16字符字面量，并设置区域设置（setlocale）为CP_UTF_16LE（如果使用MSVC）或用户首选区域设置（如果不是）。
#ifdef _MSC_VER#include <io.h> // _setmode#include <fcntl.h> // _O_U16TEXT#endif#include <stdio.h>#include <locale.h>#include <wchar_t.h>void set_locale_mode() {#ifdef _MSC_VER// Unicode UTF-16，小端字节顺序（ISO 10646的BMP）const char *CP_UTF_16LE = ".1200";setlocale(LC_ALL, CP_UTF_16LE);_setmode(_fileno(stdout), _O_U16TEXT);#else// 设置用户首选区域设置setlocale(LC_ALL, "");#endif}int main(void) {set_locale_mode(); // 在任何其他输出之前执行此操作// 使用Unicode为`å`的UTF-16字符字面量：wchar_t myChar = u'\u00E5';wprintf(L"%lc", myChar);}
在Windows 11上使用VS2022进行了测试。
英文:
I'd try using an UTF-16 character literal and also set the locale (setlocale) to CP_UTF_16LE if using MSVC or to the user-preferred locale if not.
#ifdef _MSC_VER#include <io.h> // _setmode#include <fcntl.h> // _O_U16TEXT#endif#include <stdio.h>#include <locale.h>#include <wchar.h>void set_locale_mode() {#ifdef _MSC_VER// Unicode UTF-16, little endian byte order (BMP of ISO 10646)const char *CP_UTF_16LE = ".1200";setlocale(LC_ALL, CP_UTF_16LE);_setmode(_fileno(stdout), _O_U16TEXT);#else// set the user-preferred localesetlocale(LC_ALL, "");#endif}int main(void) {set_locale_mode(); // do this before any other output// UTF-16 character literal with unicode for `å`:wchar_t myChar = u'\u00E5';wprintf(L"%lc", myChar);}
Tested in Windows 11 with VS2022
答案2
得分: 1
在Windows上，要输出Unicode字符，需要更改控制台模式：
#include<fcntl.h>#include <io.h>#include <stdio.h>int main(void) {_setmode(_fileno(stdout), _O_U16TEXT);// UTF-16 character literal with unicode for `å`:wchar_t myChar = 0x00E5;// Adding U+20AC EURO SIGN as well.wprintf(L"\u20ac%lc", myChar);}
输出：
ی
英文:
On Windows, to output Unicode characters the console mode needs to be changed:
#include<fcntl.h>#include <io.h>#include <stdio.h>int main(void) {_setmode(_fileno(stdout), _O_U16TEXT);// UTF-16 character literal with unicode for `å`:wchar_t myChar = 0x00E5;// Adding U+20AC EURO SIGN as well.wprintf(L"\u20ac%lc", myChar);}
Output:
ی
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