What is the difference between static and non-static variables?
静态变量和非静态变量有何不同？
Well, an abstract class can have non-static variables, and an interface can't.
抽象类可以有非静态变量，而接口不可以有。
Non-reentrant functions and static variables.
不可重入函数和静态变量。
The entire application is free to use all the static variables and non-reentrant library functions it wants, greatly simplifying programming and debugging while increasing performance.
整个程序可以自由的使用静态变量和不可重入的函数，极大的简化了编程和调试，从而增加了性能。
The entire application is free to use all the static variables and non-reentrant library functions it wants, greatly simplifying programming and debugging while increasing performance.
整个程序可以自由的使用静态变量和不可重入的函数，极大的简化了编程和调试，从而增加了性能。
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