日期格式化

日期格式化

NSDateFormatter *formatter = [[NSDateFormatter
alloc]
init];

[formatter setDateFormat:@"YYYY-MM-dd hh:mm:ss"];

NSTimeZone *timeZone = [NSTimeZone
timeZoneWithName:@"Asia/Shanghai"];
[formatter
setTimeZone:timeZone];

NSString *currentDate = [formatter
stringFromDate:[NSDate
date]];
[formatter
release];
或

NSDateFormatter *formatter = [[NSDateFormatter
alloc]
init];

[formatter setDateFormat:@"YYYY-MM-dd HH:mm:ss"];

NSString *currentDate = [formatter
stringFromDate:[NSDate
date]];
[formatter
release];

//这里要注意的是formatter的格式，如果是小写的"hh",那么时间将会跟着系统设置变成12小时或者24小时制。大写的HH，则强制为24小时制