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(NSString *)compareCurrentTime:(NSString *)str
{//把字符串转为NSdate
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
NSDate *timeDate = [dateFormatter dateFromString:str];
//八小时时区
NSTimeZone *zone = [NSTimeZone systemTimeZone];
NSInteger interval = [zone secondsFromGMTForDate: timeDate];
NSDate *mydate = [timeDate dateByAddingTimeInterval: interval];
NSDate *nowDate =[[NSDate date] dateByAddingTimeInterval: interval];
// 两个时间间隔
NSTimeInterval timeInterval= [mydate timeIntervalSinceDate:nowDate];
timeInterval = -timeInterval;NSLog(@"时间是%f",timeInterval);
long temp = 0;
NSString *result;
if (timeInterval < 60) {
result = [NSString stringWithFormat:@"刚刚"];
}
else if((temp = timeInterval/60) <60){
result = [NSString stringWithFormat:@"%ld分钟前",temp];
}else if((temp = timeInterval/(60*60)) <24){
result = [NSString stringWithFormat:@"%ld小时前",temp];
}else if((temp = timeInterval/(246060)) <30){
result = [NSString stringWithFormat:@"%ld天前",temp];
}else if((temp = timeInterval/(24606030)) <12){
result = [NSString stringWithFormat:@"%ld月前",temp];
}
else{
temp = timeInterval/(24606030*12);
result = [NSString stringWithFormat:@"%ld年前",temp];
}return result;
}
时间相乘 ，显示错误❌－ － ！
