定義和用法

nl_langinfo() 函數(shù)返回指定的本地信息。

如果成功，則返回指定的本地信息。如果失敗，則返回 false。

語法

nl_langinfo(element)

參數(shù)	描述
element	必需。規(guī)定要返回哪個元素。必須是說明中列出的元素之一。

說明

時間和日歷：

• ABDAY_(1-7) - Abbreviated name of the numbered day of the week
• DAY_(1-7) - Name of the numbered day of the week (DAY_1 = Sunday)
• ABMON_(1-12) - Abbreviated name of the numbered month of the year
• MON_(1-12) - Name of the numbered month of the year
• AM_STR - String for Ante meridian
• PM_STR - String for Post meridian
• D_T_FMT - String that can be used as the format string for strftime() to represent time and date
• D_FMT - String that can be used as the format string for strftime() to represent date
• T_FMT - String that can be used as the format string for strftime() to represent time
• T_FMT_AMPM - String that can be used as the format string for strftime() to represent time in 12-hour format with ante/post meridian
• ERA - Alternate era
• ERA_YEAR - Year in alternate era format
• ERA_D_T_FMT - Date and time in alternate era format (string can be used in strftime())
• ERA_D_FMT - Date in alternate era format (string can be used in strftime())
• ERA_T_FMT - Time in alternate era format (string can be used in strftime())

貨幣類別：

• INT_CURR_SYMBOL - Currency symbol (example: USD)
• CURRENCY_SYMBOL - Currency symbol (example: $)
• CRNCYSTR - Same as CURRENCY_SYMBOL
• MON_DECIMAL_POINT - Monetary decimal point character
• MON_THOUSANDS_SEP - Monetary thousands separator
• POSITIVE_SIGN - Positive value character
• NEGATIVE_SIGN -Negative value character
• MON_GROUPING - Array displaying how monetary numbers are grouped (example: 1 000 000)
• INT_FRAC_DIGITS - International fractional digits
• FRAC_DIGITS - Local fractional digits
• P_CS_PRECEDES - True (1) if currency symbol is placed in front of a positive value, False (0) if it is placed behind
• P_SEP_BY_SPACE - True (1) if there is a spaces between the currency symbol and a positive value, False (0) otherwise
• N_CS_PRECEDES - True (1) if currency symbol is placed in front of a negative value, False (0) if it is placed behind
• N_SEP_BY_SPACE - True (1) if there is a spaces between the currency symbol and a negative value, False (0) otherwise
• P_SIGN_POSN - Formatting setting. Possible return values:
  • 0 - Parentheses surround the quantity and currency symbol
  • 1 - The sign string is placed in front of the quantity and currency symbol
  • 2 - The sign string is placed after the quantity and currency symbol
  • 3 - The sign string is placed immediately in front of the currency symbol
  • 4 - The sign string is placed immediately after the currency symbol
• N_SIGN_POSN - Formatting setting. Possible return values:
  • 0 - Parentheses surround the quantity and currency symbol
  • 1 - The sign string is placed in front of the quantity and currency symbol
  • 2 - The sign string is placed after the quantity and currency symbol
  • 3 - The sign string is placed immediately in front of the currency symbol
  • 4 - The sign string is placed immediately after the currency symbol

數(shù)字類別：

• DECIMAL_POINT - Decimal point character
• RADIXCHAR - Same as DECIMAL_POINT
• THOUSANDS_SEP - Separator character for thousands
• THOUSEP - Same as THOUSANDS_SEP
• GROUPING - Array displaying how numbers are grouped (example: 1 000 000)

通信類別：

• YESEXPR - Regex string for matching 'yes' input
• NOEXPR - Regex string for matching 'no' input
• YESSTR - Output string for 'yes'
• NOSTR - Output string for 'no'

代碼集類別：

• CODESET Return a string with the name of the character encoding.

提示和注釋

注釋：money_format() 函數(shù)無法在 windows 平臺上工作。

提示：與返回所有本地格式化信息的 localeconv() 函數(shù)不同，nl_langinfo() 返回指定的信息。