text: //
  //  UIPlaceHolderTextView.h
  //  Hey!XuanWu
  //
  //  Created by 徐 传勇 on 13-1-15.
  //  Copyright (c) 2013年 q mm. All rights reserved.
  //
  
  #import <UIKit/UIKit.h>
  
  @interface UIPlaceHolderTextView : UITextView {
      NSString *placeholder;
      UIColor *placeholderColor;
  @private
      UILabel *placeHolderLabel;
  }
  @property(nonatomic, retain) UILabel *placeHolderLabel;
  @property(nonatomic, retain) NSString *placeholder;
  @property(nonatomic, retain) UIColor *placeholderColor;
  -(void)textChanged:(NSNotification*)notification;
  @end
  