过于简单

#include<bits/stdc++.h>
using namespace std;
struct stu{
    string name;
    float achievement;
    int weight;
}a[105];
int main(){
    a[0].name="张三";
    a[0].achievement=98.5;
    a[0].weight=12;
    cout<<a[0].name<<" "<<a[0].achievement<<" "<<a[0].weight;
    return 0;
}