C 库函数 - localeconv()
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
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 = .