大佬帮忙纠正一下 - 编程论坛

#2

zbjzbj2021-01-10 17:41

敬告：
1.学好汉语，让别人知道你在说什么
2.学点英语，知道编程器提示的是什么

[此贴子已经被作者于2021-1-13 22:20编辑过]

#3

星辰探2021-01-10 17:52

回复 2楼 zbjzbj

刚学C，看不明白

#4

apull2021-01-11 00:30

看编译器的错误提示
你的arrage和a[]哪来的？在哪里声明了？

#5

rjsp2021-01-11 10:21

说实话，看不懂想怎样输出

程序代码：

#include <stdio.h>

struct Data {
    int year;
    int month;
    int day;
    char name[20];
    int age;
};

double average_age( const struct Data sd[], size_t n );

int main( void )
{
    struct Data sd[5] = { {2021, 9,  1, "zhangshan", 18}
                        , {2021, 9,  1, "lisi",      19}
                        , {2020, 9, 20, "wanghu",    20}
                        , {2020, 9, 23, "liubin",    20}
                        , {2019, 9, 30, "hudayong",  21} };

    printf("%-4s %2s %2s %-20s %s\n", "年", "月", "日", "姓名", "年龄" );
    for( size_t i=0; i!=sizeof(sd)/sizeof(*sd); ++i )
        printf( "%4d %2d %2d %-20s %4d\n", sd[i].year, sd[i].month, sd[i].day, sd[i].name, sd[i].age );
    printf( "平均年龄: %.1f\n", average_age(sd,sizeof(sd)/sizeof(*sd)) );
}

double average_age( const struct Data sd[], size_t n )
{
    double sum = 0;
    for( size_t i=0; i!=n; ++i )
        sum += sd[i].age;
    return n!=0 ? sum/n : 0;
}