ruby 中的静态变量，就像在 C 函数中一样

Ruby 中是否有静态变量之类的东西会像在 C 函数中一样?

Is there any such thing as static variables in Ruby that would behave like they do in C functions?

这是我的意思的一个简单示例.它将6\n7\n"打印到控制台.

Here's a quick example of what I mean. It prints "6\n7\n" to the console.

#include <stdio.h>

int test() {
        static int a = 5;
        a++;
        return a;
}

int main() {

        printf("%d\n", test());
        printf("%d\n", test());

        return 0;
}