C ++运行时是什么意思？(What does it mean by C++ runtime?)

 将方法作为静态运行是安全的，只要它不依赖于静态方法之外的静态变量即可。 
 
 这里是一个如何在asp.net Web应用程序中不使用静态的示例： 
 
    public static string SaveSomething;
    public static void DoSomething()
    {
        SaveSomething = "something";
        //... do more code
        AnotherAction(SaveSomething);
    }
 
 首先，SaveSomething字符串属性设置为您的值。 同时，该属性可以由另一个请求/用户设置，因为它共享该属性。 现在，如果您回忆该属性并将其用于AnotherAction，则它可能与您最初设置的值不同。 如果要使用对外部静态变量的引用，则必须确保这些变量以这种方式安全使用。 大多数情况下它们是只读的。 
 
 但是可以使用lock语句锁定属性： 
 
    public static string SaveSomething;
    public static void DoSomething()
    {
        lock (SaveSomething)
        {
             SaveSomething = "something";
             //... do more code
             AnotherAction(SaveSomething);
        }
    }
 
 lock关键字通过获取给定对象的互斥锁，执行语句，然后释放锁来将语句块标记为关键部分。 

It is safe to run your method as a static, as long as it does not depend on static variables that are outside of your static method.
 
Here a example of how not to use statics in asp.net web applications:
 
    public static string SaveSomething;
    public static void DoSomething()
    {
        SaveSomething = "something";
        //... do more code
        AnotherAction(SaveSomething);
    }
 
First the SaveSomething string property is set to your value. In the meanwhile this property could be set by another request/user because it shares the property. Now if you recall the property and use it for AnotherAction it may not be the same value as you initially set. If you want to use references to external static variables, you have to be sure those variables are safe to use in that manner. Most of the cases they are read only.
 
However it is possible to lock the property with the lock statement:
 
    public static string SaveSomething;
    public static void DoSomething()
    {
        lock (SaveSomething)
        {
             SaveSomething = "something";
             //... do more code
             AnotherAction(SaveSomething);
        }
    }
 
The lock keyword marks a statement block as a critical section by obtaining the mutual-exclusion lock for a given object, executing a statement, and then releasing the lock.