枚举enum与typedef enum的区别

C里面定义enum变量的时候必须加enum

enum  TextType
{
    TM_ENGLISH_ABC,
    TM_ENGLISH_abc,
    TM_NUMBER,
    TM_SYMBOL,
    TM_PINYIN
};
int  main()
{
    enum  TextType x; //ok
    TextType y; //error
}

typedef  enum  TextType
{
    TM_ENGLISH_ABC,
    TM_ENGLISH_abc,
    TM_NUMBER,
    TM_SYMBOL,
    TM_PINYIN
}TextType;

int  main()
{
    enum  TextType x; //ok
    TextType y; //ok