枚举 c 枚举 如果你想固定几个取值,就用枚举; 先定义枚举类型;再定义枚举变量; enum Season{spring,summer,autumn,winter};定义枚举类型; enum Season s;定义枚举变量;enum Season s = summer; C语言是弱语法;固定取值用枚举;枚举值都是整型常量;