aix和java的simpleDateFormat定义竟然不一样

最新推荐文章于 2025-09-12 20:46:46 发布

最新推荐文章于 2025-09-12 20:46:46 发布 · 101 阅读

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本文详细解析了AIX5.3操作系统中日期格式的各个组成部分，包括月份（mm/MM）、日期（dd）、小时（HH）、分钟（MM）及年份（YYyy）的具体含义与使用方式。特别注意的是对于年份输入的处理规则，例如如何区分20世纪与21世纪的年份。

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AIX 5.3上：
mm
Specifies the month number.
dd
Specifies the number of the day in the month.
HH
Specifies the hour in the day (using a 24-hour clock).
MM
Specifies the minute number.
YY
Specifies the first two digits of the year. Note: If you do not
specify the first two digits of the year, values in the range 69
to 99 refer to the twentieth century, 1969 to 1999 inclusive, and
values in the range 00 to 68 refer to years in the twenty-first
century, 2000 to 2068 inclusive.
yy
Specifies the last two digits of the year. Note: The date command
accepts a 4 digit year as input. For example, if a four-digit year
is specified, the date command tries to set the year to "YYyy" and
fails for values which are out of range (less than 1970 and
greater than 2037).
java：
mm--分
MM--月
yyyy或者yy-年