c++ 结构体容器(vector)类型初始化及结构体vector指针传递

#include <iostream>
#include <stdio.h>
#include <vector>


struct BoxInfo
{
    int label;
    float score;
};


int bbox_init(std::vector<BoxInfo> &bboxs)
{
    BoxInfo u_temp;
    for(int i = 0; i < 10; i++)
    {
        u_temp.score = 0.8f +0.1f*i;
        u_temp.label = i;

        bboxs.push_back(u_temp);
    }

    return 0;
}


int main()
{
    printf("begin \r\n");
    std::vector<BoxInfo> bboxs;

    bbox_init(bboxs);

    printf("mid \r\n");

    for(int i = 0; i < 10; i++)
    {
        printf("bboxs[%d].score = %f \r\n",i,bboxs[i].score);
        printf("bboxs[%d].label = %d \r\n",i,bboxs[i].label);
    }
    printf("bboxs.size() = %d \r\n",bboxs.size());
}