//定义一个TextField
UITextField *userNameField = [[UITextField alloc] initWithFrame:CGRectMake(userNameImg.frame.origin.x+30,userNameImg.frame.origin.y, 165, 40)]; UITextField *userName
//定义一个TextField
UITextField *userNameField = [[UITextField alloc] initWithFrame:CGRectMake(userNameImg.frame.origin.x+30,userNameImg.frame.origin.y, 165, 40)]; UITextField *userName