小编Rin*_*tia的帖子

我需要这种功能.就像在MS Word中一样,我们在菜单栏中选择表格,然后在我们的表格中绘制.

那么如何在Java中完成呢？我想我可以使用的表格JTextArea.

#include<stdio.h>
#include<string.h>
typedef struct
{
    float TotalSize;
    float AvailableSize;
}SdMemoryInfo;


void SdGetMemoryUsageRespCsccToGui(SdMemoryInfo *abcdSdMemoryInfo)
{
    printf("\nSize of(SdMemoryInfo): %d %d",sizeof(abcdSdMemoryInfo),sizeof(float)); //Size of abcdSdMemoryInfo
}

int main()
{
    SdGetMemoryUsageResp mSdGetMemoryUsageResp;
    SdMemoryInfo vSdMemoryInfo[2];
    vSdMemoryInfo[0].TotalSize = 1;
    vSdMemoryInfo[0].AvailableSize = 2;
    vSdMemoryInfo[1].TotalSize = 3;
    vSdMemoryInfo[1].AvailableSize = 4;


    printf("\nSize of(SdMemoryInfo): %d %d",sizeof(vSdMemoryInfo),sizeof(float)); //Size of vSdMemoryInfo

    SdGetMemoryUsageRespCsccToGui(vSdMemoryInfo);
}

输出:

Size of(SdMemoryInfo): 16 4
Size of(SdMemoryInfo): 8 4 

为什么是结构数组的大小vSdMemoryInfo和abcdSdMemoryInfo不同？