校验表单：只能为数字，且必须是1到100之间
public function rules ()
{
return [
[['member_type' , 'member_name', 'member_sex', 'member_age', 'member_head' , 'member_birth', 'member_info'], 'required'],
[['member_type' , 'member_age'], 'integer','min' =>1, 'max'=>100],
[['member_sex' , 'member_info'], 'string'],
[['member_birth' ], 'safe'],
[['member_name' , 'member_head'], 'string', 'max' => 255]
];
}
