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- (void) saveTextView{
NSString *text = self.textView.text;
NSDate *currentDate = [NSDate date];
NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
[formatter setDateFormat:@"yyyy年-MM月-dd日"];
NSString *date = [formatter stringFromDate:currentDate];
NSMutableDictionary *dic = [[NSMutableDictionary alloc] init];
[dic setObject:date forKey:@"date"];
[dic setObject:text forKey:@"text"];
NSString *path = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
NSString *fileName = [path stringByAppendingString:@"/userDiary.plist"];
NSMutableArray *array = [[NSMutableArray alloc] initWithObjects:dic, nil];
[array writeToFile:fileName atomically:YES];
}