求该程序哪出错了 ?还是说我的逻辑本身就是错误的?

struct client_BankRakyat
{
string name_clien;

string name_garentor;

string level_of_study;

int duration_loan;

float total_of_loan;

};

参考上面的struct定义，你需要做一个YBR客户端的struct声明，并用C++编写一个完整的程序来输入和输出100个YBR客户端的数据。
#include
using namespace std;
#include
struct client_BankRakyat
{
string name_clien;

string name_garentor;

string level_of_study;

int duration_loan;

float total_of_loan;

};

int main()
{
string name_clien;

string name_garentor;

string level_of_study;

int duration_loan;

float total_of_loan;

for (int i = 0; i < 100; i++)
{
    cout <<" name:  _clien"<< name_clien 
        << " name:  _garentor" << name_garentor 
        << " level:  _of_study" << level_of_study
    << " duration:  _loan "<< duration_loan
    <<"  total:  _of_loan" << total_of_loan << endl;

}
system(" pause ");

return 0;

}

你没给变量赋值呢
代码修改如下：

#include <iostream>
#include <string>
using namespace std;

struct client_BankRakyat
{
    string name_clien;
    string name_garentor;
    string level_of_study;
    int duration_loan;
    float total_of_loan;
};

int main()
{
    struct client_BankRakyat st[100]; //定义一个结构体数组
    int i;
    //赋值
    for (i=0;i<5;i++) //先写5个吧，100个累死
    {
        cout << "请输入name_clien:";
        cin >> st[i].name_clien;
        cout << "请输入name_garentor:";
        cin >> st[i].name_garentor;

        cout << "请输入level_of_study:";
        cin >> st[i].level_of_study;

        cout << "请输入duration_loan:";
        cin >> st[i].duration_loan;

        cout << "请输入total_of_loan:";
        cin >> st[i].total_of_loan;
    }
    //显示
    for (i = 0; i < 5; i++)
    {
        cout <<" name_clien:"<< st[i].name_clien 
            << " name_garentor:" << st[i].name_garentor 
            << " level_of_study:" << st[i].level_of_study
            << " duration_loan: "<< st[i].duration_loan
            <<"  total_of_loan:" << st[i].total_of_loan << endl;

    }
    system(" pause ");

    return 0;
}

供参考：

#include<iostream>
#include<string>
using namespace std;

struct client_BankRakyat
{
    string name_clien;

    string name_garentor;

    string level_of_study;

    int duration_loan;

    float total_of_loan;
};

int main()
{
    struct client_BankRakyat YBR[100];

    for(int i=0;i<100;i++)
    {
        cin>>YBR[i].name_clien>>YBR[i].name_garentor
           >>YBR[i].level_of_study>>YBR[i].duration_loan
           >>YBR[i].total_of_loan;
    }

    for (int i = 0; i < 100; i++)
    {
         cout <<"name_clien:    "<< YBR[i].name_clien<<endl;
         cout <<"name_garentor: " << YBR[i].name_garentor<<endl;
         cout <<"level_of_study:" << YBR[i].level_of_study<<endl;
         cout <<"duration_loan: "<< YBR[i].total_of_loan<<endl;
         cout <<"total_of_loan: " << YBR[i].total_of_loan << endl;

    }
    system(" pause ");
    return 0;
}

#include
using namespace std;
#include
struct client_BankRakyat
{
string name_clien;
iostream 为什么不显示啊