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示例
   
package main/*#include 
    
   
    
     
    #include 
     
    
     
      
     struct Dog {    char name[32];    int  id;};#define MAX_DOG 16struct Dog dogs[MAX_DOG];*/import "C"import "fmt"import "unsafe"func main () {       var dog  C.struct_Dog           fmt.Println("C Array >>>>>>>>>>>>>>>>>>>")           // C 定义数组可直接通过 range 访问       for k, v := range C.dogs {               //fmt.Println("k=", k)                       dog = v               dog.id = C.int(k)               fmt.Println("Id", int(dog.id))       }       fmt.Println("C Malloc >>>>>>>>>>>>>>>>>>>")           ptr := C.malloc(C.sizeof_struct_Dog * C.size_t(10))       var e *C.struct_Dog       var Ptr uintptr       fmt.Println("malloc", ptr)       e = (*C.struct_Dog)(ptr)       for i := 0; i < 10; i++ {               e.id = C.int(i)               // 通过unsafe.Pointer 访问内存地址               Ptr = (uintptr)(unsafe.Pointer(ptr)) + (uintptr)(C.sizeof_struct_Dog * C.int(i))               e = (*C.struct_Dog)(unsafe.Pointer(Ptr))       }       Ptr = uintptr(unsafe.Pointer(ptr))       for i := 1; i < 10; i++ {               e = (*C.struct_Dog)(unsafe.Pointer(Ptr))               fmt.Println("ptr", unsafe.Pointer(Ptr))               fmt.Println("id", int(e.id))               Ptr = (uintptr)(unsafe.Pointer(ptr)) + (uintptr)(C.sizeof_struct_Dog * C.int(i))       }       defer C.free(ptr)}
     
    
输出：
# go build c_struct_array.goC Arrary >>>>>>>>>>>>>>>>>>>>Id 0Id 1Id 2Id 3Id 4Id 5Id 6Id 7Id 8Id 9Id 10Id 11Id 12Id 13Id 14Id 15C Malloc >>>>>>>>>>>>>>>>>>>>malloc 0x196b7e0ptr 0x196b7e0id 1ptr 0x196b804id 2ptr 0x196b828id 3ptr 0x196b84cptr 0x196b870id 5ptr 0x196b894id 6ptr 0x196b8b8id 7ptr 0x196b8dcid 8ptr 0x196b900id 9