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特定日期时NSDate是空值

在获取特定时期时得到空字符。

比如13/03/2013。
代码:

NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
[formatter setDateFormat:@"MM/dd/yyyy HH:mm:ss a"];
NSDate *myDate = [formatter dateFromString:@"12/03/2013 5:47:00 AM"];
NSDate *myDate1 = [formatter dateFromString:@"13/03/2013 6:25:48 AM"];           

NSDateFormatter *df = [[NSDateFormatter alloc] init];
[df setLocale:[[NSLocale alloc] initWithLocaleIdentifier:@"en_US_POSIX"]];
[df setDateFormat:@"yyyy-MM-dd HH:mm"];
NSString *datestr = [df stringFromDate:myDate];
NSString *datestr1 = [df stringFromDate:myDate1];
NSLog(@"date object %@,%@",datestr,datestr1);

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爵霸 2016-03-24 10:37:01 1910 分享 版权
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  • 需要看一下标准日期格式:

      NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
        [formatter setDateFormat:@"dd/MM/yyyy hh:mm:ss a"];
        NSDate *myDate = [formatter dateFromString:@"12/03/2013 5:47:00 AM"];
        NSDate *myDate1 = [formatter dateFromString:@"13/03/2013 6:25:48 AM"];  
    
        [formatter setLocale:[[NSLocale alloc] initWithLocaleIdentifier:@"en_US_POSIX"]];
        [formatter setDateFormat:@"yyyy-MM-dd HH:mm"];
        NSString *datestr = [formatter stringFromDate:myDate];
        NSString *datestr1 = [formatter stringFromDate:myDate1];
        NSLog(@"date object %@,%@",datestr,datestr1);
    2019-07-17 19:12:10
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