加密/解密数据php(Encrypted/Decrypted data php)

 弗兰克的评论是您想要简单地启用/禁用一组小部件的内容，但我将回答您关于如何将状态更改应用于一组对象的更一般的问题。 如果您可以自由使用C ++ 11，那么以下内容将为您提供使用一组通用函数参数在任何对象上调用任何成员函数的一般功能： 
 
// Member functions without arguments
template<typename ObjectPtrs, typename Func>
void  batchApply(ObjectPtrs objects, Func func)
{
    for (auto object : objects)
    {
        (object->*func)();
    }
}

// Member functions with 1 or more arguments
template<typename ObjectPtrs, typename Func, typename ... Args>
void  batchApply(ObjectPtrs objects, Func func, Args ... args)
{
    for (auto object : objects)
    {
        (object->*func)(args ...);
    }
}
 
 通过上述内容，您可以实现以下目标：只需一行代码即可在一组对象上调用函数。 你会使用这样的东西： 
 
QCheckbox  b1, b2, b3, b4, b5;
auto Box_1to5 = {b1, b2, b3, b4, b5};

batchApply(Box_1to5, &QCheckbox::setChecked, false);
batchApply(Box_1to5, &QCheckbox::toggle);
 
 上述方法的一个限制是它不处理默认函数参数，因此即使函数具有默认参数，也必须显式提供一个。 例如，以下将导致编译器错误，因为animateClick有一个参数（忽略其默认值）： 
 
batchApply(Box_1to5, &QCheckbox::animateClick);
 
 上述技术使用可变参数模板来支持任何数量和类型的函数参数。 如果您还不熟悉这些，可能会发现以下内容： 
 
 https://crascit.com/2015/03/21/practical-uses-for-variadic-templates/ 

Frank's comment is what you want for simply enabling/disabling a set of widgets, but I'll answer your more general question of how to apply a change of state to a set of objects. If you are free to use C++11, then the following will give you the general ability to call any member function on any object with a common set of function arguments:
 
// Member functions without arguments
template<typename ObjectPtrs, typename Func>
void  batchApply(ObjectPtrs objects, Func func)
{
    for (auto object : objects)
    {
        (object->*func)();
    }
}

// Member functions with 1 or more arguments
template<typename ObjectPtrs, typename Func, typename ... Args>
void  batchApply(ObjectPtrs objects, Func func, Args ... args)
{
    for (auto object : objects)
    {
        (object->*func)(args ...);
    }
}
 
With the above, you can achieve your goal of being able to call a function on a set of objects with a single line of code. You would use it something like this:
 
QCheckbox  b1, b2, b3, b4, b5;
auto Box_1to5 = {b1, b2, b3, b4, b5};

batchApply(Box_1to5, &QCheckbox::setChecked, false);
batchApply(Box_1to5, &QCheckbox::toggle);
 
The one limitation of the above method is that it doesn't handle default function arguments, so even if a function has a default argument, you have to explicitly provide one. For example, the following will result in a compiler error because animateClick has one argument (its default value is ignored):
 
batchApply(Box_1to5, &QCheckbox::animateClick);
 
The above technique uses variadic templates to support any number and type of function arguments. If you are not yet familiar with these, you may find the following useful:
 
https://crascit.com/2015/03/21/practical-uses-for-variadic-templates/