UITextView 边框的设置导入QuartzCote框架：#import QuartzCore/QuartzCore.h设置边框：textView.layer.bo
UITextView 边框的设置
导入QuartzCote框架：
#import <QuartzCore/QuartzCore.h>
设置边框：
textView.layer.borderColor = [UIColorgrayColor].CGColor;
textView.layer.borderWidth =1.0;
textView.layer.cornerRadius =5.0;