C 库函数 _ localeconv()

C 标准库 - <locale.h> C 标准库 - <locale.h>

描述

C 库函数 struct lconv *localeconv(void) 设置或读取地域化信息。它会返回一个 lconv 结构类型的对象。

声明

下面是 localeconv() 函数的声明。

struct lconv *localeconv(void)

参数

  • NA

返回值

该函数返回一个指向当前区域 struct lconv 的指针,它的结构如下:

typedef struct {
 char *decimal_point;
 char *thousands_sep;
 char *grouping;    
 char *int_curr_symbol;
 char *currency_symbol;
 char *mon_decimal_point;
 char *mon_thousands_sep;
 char *mon_grouping;
 char *positive_sign;
 char *negative_sign;
 char int_frac_digits;
 char frac_digits;
 char p_cs_precedes;
 char p_sep_by_space;
 char n_cs_precedes;
 char n_sep_by_space;
 char p_sign_posn;
 char n_sign_posn;
} lconv

实例

下面的实例演示了 localeconv() 函数的用法。

#include <locale.h>
#include <stdio.h>
int main ()
{
 struct lconv * lc;
 setlocale(LC_MONETARY, "it_IT");
 lc = localeconv();
 printf("Local Currency Symbol: %s\n",lc->currency_symbol);
 printf("International Currency Symbol: %s\n",lc->int_curr_symbol);
 setlocale(LC_MONETARY, "en_US");
 lc = localeconv();
 printf("Local Currency Symbol: %s\n",lc->currency_symbol);
 printf("International Currency Symbol: %s\n",lc->int_curr_symbol);
 setlocale(LC_MONETARY, "en_GB");
 lc = localeconv();
 printf ("Local Currency Symbol: %s\n",lc->currency_symbol);
 printf ("International Currency Symbol: %s\n",lc->int_curr_symbol);
 printf("Decimal Point = %s\n", lc->decimal_point);
 
 return 0;
}

让我们编译并运行上面的程序,这将产生以下结果:

Local Currency Symbol: EUR
International Currency Symbol: EUR
Local Currency Symbol: $
International Currency Symbol: USD
Local Currency Symbol: £
International Currency Symbol: GBP
Decimal Point = .

C 标准库 - <locale.h> C 标准库 - <locale.h>

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