关闭键盘

UITapGestureRecognizer * tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapOnce)];//定义一个手势
[tap setNumberOfTouchesRequired:1];//触击次数这里设为1
[editShopTableView addGestureRecognizer:tap];//添加手势到View中
-(void)tapOnce//手势方法
{
    [textFieldShopName resignFirstResponder];
    [textFieldWeChatID resignFirstResponder];
}