text: //
  //  show
  //
  //  Created by show gx on 16/6/21.
  //  Copyright © 2016年 gx. All rights reserved.
  //
  
  #import <UIKit/UIKit.h>
  
  @interface UITextField (Category)
  -(void)setPlaceholder:(NSString *)placeholder withFont:(UIFont*)font color:(UIColor*)color;
  
  -(void)setPlaceholder:(NSString *)placeholder withFont:(float)font color:(NSString *)color alpha:(float)alpha;
  
  @end
  