1.问题
NSString 格式的时间戳 ===》NSDate 时间戳 ===》long 毫秒的时间戳
2. code
NSDateFormatter \*dateFormatter = \[\[NSDateFormatter alloc\]init\];
\[dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"\];
NSDate \*logDate = \[dateFormatter dateFromString:@"**2016-11-27 16:14:49**"\];
NSTimeInterval logDateInterval= \[logDate timeIntervalSince1970\];
long logTime= logDateInterval\*1000;
//默认是秒,毫秒 时间戳\*1000 ,想取得微秒 时间戳 \* 1000 \* 1000
//long logTime= (long)\[logDatetimeIntervalSince1970\]; 要是这样,后台得到的是'1970-01-18 18:20:08'
//ASIFormDataRequest POST 参数要求是对象,故long 转为NSNumber
NSNumber \*logTimeNum = \[NSNumber numberWithLong:logTime\];
\[request setPostValue:logTimeNum forKey:@"logTime"\];
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