thmodel_ios_model/model/Classes/Tools/Category/Helper.m

//
//  Helper.m
//  千模
//
//  Created by MUMEI on 2018/6/21.
//  Copyright © 2018年 MUMEI. All rights reserved.
//

#import "Helper.h"

@implementation Helper
+ (Helper *)sharedAccount {
    static Helper *sharedAccount = nil;
    @synchronized (self) {
        if (!sharedAccount) {
            sharedAccount = [[Helper alloc] init];
        }
        return sharedAccount;

    }
}

+ (NSString *)getCurrentTimes {

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

    // ----------设置你想要的格式,hh与HH的区别:分别表示12小时制,24小时制

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

    //现在时间,你可以输出来看下是什么格式

    NSDate *datenow = [NSDate date];

    //----------将nsdate按formatter格式转成nsstring

    NSString *currentTimeString = [formatter stringFromDate:datenow];

    NSLog(@"currentTimeString =  %@", currentTimeString);

    return currentTimeString;

}

+ (NSString *)getLastTimes {

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

    // ----------设置你想要的格式,hh与HH的区别:分别表示12小时制,24小时制

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

    //现在时间,你可以输出来看下是什么格式

    NSDate *date = [NSDate date];
    NSDate *lastDay = [NSDate dateWithTimeInterval:-24 * 60 * 60 sinceDate:date];

    //----------将nsdate按formatter格式转成nsstring

    NSString *lastTimeString = [formatter stringFromDate:lastDay];

    NSLog(@"lastTimeString =  %@", lastTimeString);

    return lastTimeString;

}

+ (BOOL)valiMobile:(NSString *)mobile {
    return [[NSPredicate predicateWithFormat:@"SELF MATCHES %@", @"^1[3-9]\\d{9}$"] evaluateWithObject:mobile];
}
@end