iOS - 实现TextView提示文字而且输入字数限制

#import "FeedBackViewController.h" #import <Masonry.h> #define KCColor(r,g,b) [UIColor colorWithRed:r/255.0 green:g/255.0 blue:b/255.0 alpha:1]//颜色宏定义 #define KCGrayColor KCColor(204,204,204) #define

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