typedef enum {FAILED = 0,PASSED = FAILED} TestStatus; 这是

typedef enum {FAILED = 0,PASSED = FAILED} TestStatus; 这是
typedef enum {FAILED = 0,PASSED = FAILED} TestStatus; 这是

typedef enum {FAILED = 0,PASSED = FAILED} TestStatus; 这是
定一个枚举类型TestStatus,该类型类似于布尔值,0（FAILED）和非零（PASSED）两种取值.
TestStatus可以用来定义变量,如
TestStatus result = FAILED;