???????????????struct???typedef struct
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?????????
?????????????????????
??????1 ?????????//?????????C???C++?????????
???????????????C????????????????????????????????????typedef:
????????????typedef struct Student
????????????{
????????????int a;
????????????}Stu;
???????????????????????????????????????????????????Stu stu1;(????????????typedef????????????struct Student stu1;?????????)
?????????????????????Stu???????????????struct Student????????????Stu==struct Student
???????????????????????????????????????Student??????????????????struct Student stu1;???????????????Stu stu1;???
????????????typedef struct
????????????{
????????????int a;
????????????}Stu;
??????????????????c++?????????????????????
????????????struct Student
????????????{
????????????int a;
????????????};????????????
?????????????????????????????????????????????Student????????????????????????Student stu2???
======================================================================================
??????2.?????????
???????????????c++????????????typedef??????????????????????????????
????????????struct Student
????????????{
????????????int a;
????????????}stu1;//stu1???????????????
????????????typedef struct Student2
????????????{
????????????int a;
????????????}stu2;//stu2????????????????????????=struct Student
???????????????????????????????????????stu1.a
??????????????????stu2???????????? stu2 s2;
?????????????????? s2.a=10;
======================================================================================
??????3 ????????????????????????????????????????????????????????????????????????????????????
?????????????????????c?????????????????????
????????????typedef struct
????????????{
????????????int num;
????????????int age;
????????????}aaa,bbb,ccc;
??????????????????????????????
???????????????????????????????????????VC6???????????????????????????
????????????typedef struct
????????????{
????????????int num;
????????????int age;
????????????}aaa???
????????????typedef aaa bbb;
????????????typedef aaa ccc;
????????????????????????aaa,bbb,ccc?????????????????????????????????????????????????????????????????????,???c++???????????????????????????????????????????????????c++??????????????????typedef??????????????????aaa???bbb???ccc????????????????????????????????????
????????????//????????????????????????
??????
????????????typedef struct???struct????????????
????????????typedef struct tagMyStruct
????????????{
???????????????int iNum;
???????????????long lLength;
????????????} MyStruct;
?????????????????????tagMyStruct???????????????MyStruct??????????????????????????????int,char????????????
???????????????????????????????????????????????????
??????????????????1) ??????????????????????????????
????????????struct tagMyStruct
????????????{??????
???????????????int iNum;
???????????????long lLength;
????????????};
???????????????tagMyStruct??????“tag”??????“??????”???????????????????????????????????????????????????typedefstruct ????????????tagMyStruct???????????????????????????????????????????????????????????????
?????????????????????struct tagMyStruct varName???????????????????????????????????????tagMyStruct varName????????????????????????????????????struct ???tagMyStruct?????????????????????????????????????????????
??????2) typedef?????????????????????????????????????????????MyStruct???
????????????typedef struct tagMyStruct MyStruct;
???????????????MyStruct??????????????????struct tagMyStruct?????????????????????MyStruct varName??????????????????
??????2.
????????????typedef struct tagMyStruct
????????????{
???????????????int iNum;
???????????????long lLength;
????????????} MyStruct;
???????????????C????????????????????????????????????????????????????????????
???????????????1???struct tagMyStruct ?????????
???????????????2???MyStruct ?????????
???????????????c++????????????
???????????????1???struct tagMyStruct ?????????
???????????????2???MyStruct ?????????
???????????????3???tagMyStruct ?????????
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