C语言结构体赋值

对struct结构体的赋值，囧，忘记了，都是用memcpy的。记忆下：C语言结构体赋值 1 对成员赋值. 1.1 用{}形式. struct st1 st1 = {1,2,3); 1.2 linux kernel风格. struct st1 st1 = { .a = 1; .b = 2; }; 2 对整体赋值. struct st1 a, b; b = a; 3 结构体作为函数返回值对另一个结构体赋值. struct st1 func1(); struct st1 a = func1(); 举例: [ctest]# vi t.c      #include struct st1 {     int e1;     int e2; }; struct st1 func1() {     struct st1 h = { 77, 88};     return h; } int main() {     struct st1 a = { 33, 44};     struct st1 b = {         .e1 = 55,     };     struct st1 c;     struct st1 d;     c = a;     d = func1();     printf("e1 e2 is %d %d\n", a.e1, a.e2);     printf("e1 e2 is %d %d\n", b.e1, b.e2);     printf("e1 e2 is %d %d\n", c.e1, c.e2);     printf("e1 e2 is %d %d\n", d.e1, d.e2);     return 0; } "t.c" 29L, 420C written                                                  [ctest]# gcc -o a t.c [ctest]# ./a         e1 e2 is 33 44 e1 e2 is 55 0 e1 e2 is 33 44 e1 e2 is 77 88