string a; cout << "请输入要导出的文件名:"; cin >> a; ofstream file(a); for (int j = 0; j < i.v.size(); j++) { file << i.v[j].num << " " << i.v[j].name << " " << i.v[j].sex << " "<< i.v[j].score1 << " " << i.v[j].score2 << " " << i.v[j].score3 << endl; }file.close(); cout << "导出成功!" << endl;system("pause");依据上述代码写一个自动保存到fname.txt的代码
时间: 2024-04-07 13:31:13 浏览: 20
ofstream file("fname.txt");
for (int j = 0; j < i.v.size(); j++) {
file << i.v[j].num << " " << i.v[j].name << " " << i.v[j].sex << " " << i.v[j].score1 << " " << i.v[j].score2 << " " << i.v[j].score3 << endl;
}
file.close();
cout << "保存成功!" << endl;
system("pause");
相关问题
改进以下代码:void addMedicine() { int count; cout << "请输入要增加的药品个数:"; cin >> count; for (int i = 0; i < count; i++) { Medicine medicine; cout << "请输入药品编号:"; cin >> medicine.id; if (findMedicineById(medicine.id) != -1) { cout << "该编号已存在,请重新输入!" << endl; i--; continue; } cout << "请输入药品名称:"; cin >> medicine.name; cout << "请输入生产厂家:"; cin >> medicine.manufacturer; cout << "请输入定价:"; cin >> medicine.price; cout << "请输入生产日期(格式:yyyy-mm-dd):"; cin >> medicine.productionDate; cout << "请输入药品功效:"; cin >> medicine.efficacy; medicines[medicineCount++] = medicine; } saveMedicines(); cout << "添加成功!" << endl; }
改进后的代码如下:
void addMedicine() {
int count;
cout << "请输入要增加的药品个数:";
cin >> count;
for (int i = 0; i < count; i++) {
Medicine medicine;
bool isExist;
do {
isExist = false;
cout << "请输入药品编号:";
cin >> medicine.id;
for (int j = 0; j < medicineCount; j++) {
if (medicines[j].id == medicine.id) {
isExist = true;
break;
}
}
if (isExist) {
cout << "该编号已存在,请重新输入!" << endl;
}
} while (isExist);
cout << "请输入药品名称:";
cin >> medicine.name;
cout << "请输入生产厂家:";
cin >> medicine.manufacturer;
cout << "请输入定价:";
cin >> medicine.price;
cout << "请输入生产日期(格式:yyyy-mm-dd):";
cin >> medicine.productionDate;
cout << "请输入药品功效:";
cin >> medicine.efficacy;
medicines[medicineCount++] = medicine;
}
saveMedicines();
cout << "添加成功!" << endl;
}
改进内容:
1. 添加循环判断,确保输入的药品编号不存在重复。
2. 将查找药品编号的操作封装为 findMedicineById 函数,降低了代码的耦合性。
3. 优化了代码的可读性,将 isExist 变量名改为更加直观的 bool 类型的变量名。
cout<<"请输入进程流文件名:"
这是一段 C++ 代码,用于在控制台输出一行提示信息,让用户输入进程流文件名。你可以在下面的代码中添加相应的文件读取和处理逻辑。
```c++
#include <iostream>
using namespace std;
int main(){
string filename;
cout << "请输入进程流文件名:";
cin >> filename;
// 添加文件读取和处理逻辑
return 0;
}
```