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//返回YYYY-MM-DD HH:MM:SS格式的当前时间
+(NSString *)getCurrentTime{
    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
    [dateFormatter setDateFormat:@"YYYY-MM-dd HH:mm:ss"];
    return [dateFormatter stringFromDate:[NSDate date]];
}

//如果信息发表在1小时之前显示分钟，一天之内的信息显示小时，10天之内按天显示，10天之外按所发表时间进行显示：
+ (NSString *)intervalSinceNow: (NSString *) theDate 
{

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//objective-c使用正则表达式验证邮箱
+ (BOOL)isEmailAddress:(NSString*)email { 
    NSString *emailRegex = @"^\\w+((\\-\\w+)|(\\.\\w+))*@[A-Za-z0-9]+((\\.|\\-)[A-Za-z0-9]+)*.[A-Za-z0-9]+$"; 
    NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex]; 
    return [emailTest evaluateWithObject:email]; 
}

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//
//  NSDictionary+JSONCategories.h
//  ShopCloth
//
//  Created by apple on 12-12-7.
//  Copyright (c) 2012年 __MyCompanyName__. All rights reserved.
//

#import <Foundation/Foundation.h>
#import "AppDelegate.h"

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//1显示状态
[SVProgressHUD showWithStatus:@"正在载入..."];
//2从系统中获取一个并行队列
dispatch_queue_t concurrentQueue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
//3在后台线程创建图像选择器
dispatch_async(concurrentQueue, ^{
    NSDictionary* data = [NSDictionary dictionaryWithContentsOfJSONURLString:kUrlOfBookComments];
    //4让主线程显示图像选择器
    dispatch_async(dispatch_get_main_queue(), ^{
        self.loadFooterView = [[LoadingMoreFooterView alloc]initWithFrame:CGRectZero];

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//下载路径 https://github.com/samvermette/SVProgressHUD
//
//  SVProgressHUDViewController.m
//  SVProgressHUD
//
//  Created by Sam Vermette on 27.03.11.
//  Copyright 2011 Sam Vermette. All rights reserved.
//
//SVProgressHUD使用范例

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//
//  Toast.h
//  UCBook
//
//  Created by apple on 13-1-22.
//  Copyright (c) 2013年 __MyCompanyName__. All rights reserved.
//

#define DEFAULT_DISPLAY_DURATION 2.0f

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//
//  StrikeLabel.h
//  UCBook
//
//  Created by apple on 13-1-23.
//  Copyright (c) 2013年 __MyCompanyName__. All rights reserved.
//

#import <UIKit/UIKit.h>

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//
//  SqlUtils.m
//  UCBook
//
//  Created by apple on 13-1-15.
//  Copyright (c) 2013年 __MyCompanyName__. All rights reserved.
//

#import "SqlUtils.h"
#import "CommonUtils.h"

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