text: //
  //  NSString+YUCheck.h
  //  YUKit<https://github.com/c6357/YUKit>
  //
  //  Created by BruceYu on 15/9/7.
  //  Copyright (c) 2015年 BruceYu. All rights reserved.
  //
  
  #import <Foundation/Foundation.h>
  
  @interface NSString (YUCheck)
  
  /**
   *是否可以使用 空字符串也允许
   */
  -(BOOL)isCanBeUse;
  
  /**
   *判断字符串是否为空，以及是否全是空格或者换行
   */
  - (BOOL)isBlankString;
  
  /*
   *是否全是空格或者换行
   */
  - (BOOL)isEmptyOrWhitespace;
  
  - (BOOL)isNormal;
  
  - (BOOL)isMobilephone;
  
  - (BOOL)isTelephone;
  
  - (BOOL)isEmail;
  
  - (BOOL)isUrl;
  
  - (BOOL)isNumber;
  
  
  - (BOOL)isChinese;
  
  
  - (BOOL)isDecimal;
  
  /**
   *是否包含字符串substring
   */
  - (BOOL)isContainString:(NSString*)substring;
  
  
  /**
   *有非法字符
   */
  - (BOOL)isContainSpecialCharact;
  
  /**
   *
   */
  - (BOOL)isIPAddress;
  
  @end
  