struct （指針題）不能正確輸出hello

正確答案: B   你的答案: A (錯誤) struct data3_t *pData=(struct data3_t*)&str; printf("data:%s%s\n",str.data,(char*)(&(pData->data[0]))); struct data2_t *pData=(struct data2_t*)&str; printf("data:%s%s\n",str.dat

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