#include
#include
#include
#include
using namespace std;
struct Child {
string name;
int age;
string gender;
string address;
float height;
float weight;
string parentName;
string parentPhone;
string remark;
};
void readFromFile(vector& children) {
ifstream inFile('children.txt');
if (!inFile.is_open()) {
cout << '文件打开失败！' << endl;
return;
}
string line;
while (getline(inFile, line)) {
Child child;
child.name = line;
inFile >> child.age >> child.gender >> child.address >> child.height >> child.weight >> child.parentName >> child.parentPhone;
getline(inFile, child.remark);
children.push_back(child);
}
inFile.close();
}
void saveToFile(const vector& children) {
ofstream outFile('children.txt');
if (!outFile.is_open()) {
cout << '文件打开失败！' << endl;
return;
}
for (const auto& child : children) {
outFile << child.name << endl;
outFile << child.age << ' ' << child.gender << ' ' << child.address << ' ' << child.height << ' ' << child.weight << ' ' << child.parentName << ' ' << child.parentPhone << ' ' << child.remark << endl;
}
outFile.close();
}
void addChild(vector& children) {
Child child;
cout << '请输入小朋友信息：' << endl;
cout << '姓名：';
cin >> child.name;
cout << '出生年月（岁数）：';
cin >> child.age;
cout << '性别：';
cin >> child.gender;
cout << '住址：';
cin >> child.address;
cout << '身高（米）：';
cin >> child.height;
cout << '体重（千克）：';
cin >> child.weight;
cout << '父母联系人姓名：';
cin >> child.parentName;
cout << '联系电话：';
cin >> child.parentPhone;
cout << '备注：';
getline(cin, child.remark);
children.push_back(child);
cout << '添加成功！' << endl;
}
void deleteChild(vector& children) {
string name;
cout << '请输入要删除小朋友的姓名：';
cin >> name;
auto it = find_if(children.begin(), children.end(), [name](const Child& child){return child.name == name;});
if (it != children.end()) {
children.erase(it);
cout << '删除成功！' << endl;
} else {
cout << '未找到该小朋友！' << endl;
}
}
void queryParentInfo(const vector& children) {
string name;
cout << '请输入要查询小朋友的姓名：';
cin >> name;
auto it = find_if(children.begin(), children.end(), [name](const Child& child){return child.name == name;});
if (it != children.end()) {
cout << '父母联系人姓名：' << it->parentName << endl;
cout << '联系电话：' << it->parentPhone << endl;
} else {
cout << '未找到该小朋友！' << endl;
}
}
void queryAddress(const vector& children) {
string name;
cout << '请输入要查询小朋友的姓名：';
cin >> name;
auto it = find_if(children.begin(), children.end(), [name](const Child& child){return child.name == name;});
if (it != children.end()) {
cout << '住址：' << it->address << endl;
} else {
cout << '未找到该小朋友！' << endl;
}
}
void showChildren(const vector& children) {
if (children.empty()) {
cout << '班级还没有小朋友！' << endl;
return;
}
cout << '班级小朋友信息如下：' << endl;
for (const auto& child : children) {
cout << child.name << ' ' << child.age << ' ' << child.gender << ' ' << child.address << ' ' << child.height << ' ' << child.weight << ' ' << child.parentName << ' ' << child.parentPhone << ' ' << child.remark << endl;
}
}
void sortByHeight(vector& children) {
sort(children.begin(), children.end(), [](const Child& a, const Child& b){return a.height > b.height;});
cout << '按身高排序结果如下：' << endl;
showChildren(children);
}
void sortByWeight(vector& children) {
sort(children.begin(), children.end(), [](const Child& a, const Child& b){return a.weight > b.weight;});
cout << '按体重排序结果如下：' << endl;
showChildren(children);
}
void countByGender(const vector& children) {
int maleCount = count_if(children.begin(), children.end(), [](const Child& child){return child.gender == '男';});
int femaleCount = children.size() - maleCount;
cout << '班级中男生人数为：' << maleCount << '，女生人数为：' << femaleCount << '，男女比例为：' << maleCount << ':' << femaleCount << endl;
}
int main() {
vector children;
readFromFile(children);
while (true) {
cout << '请选择操作：' << endl;
cout << '1. 增加小朋友信息' << endl;
cout << '2. 删除小朋友信息' << endl;
cout << '3. 查询小朋友父母联系人信息' << endl;
cout << '4. 查询小朋友住址' << endl;
cout << '5. 显示所有小朋友信息' << endl;
cout << '6. 按身高排序' << endl;
cout << '7. 按体重排序' << endl;
cout << '8. 统计班级男女生人数比例' << endl;
cout << '9. 退出程序' << endl;
int choice;
cin >> choice;
switch (choice) {
case 1:
addChild(children);
saveToFile(children);
break;
case 2:
deleteChild(children);
saveToFile(children);
break;
case 3:
queryParentInfo(children);
break;
case 4:
queryAddress(children);
break;
case 5:
showChildren(children);
break;
case 6:
sortByHeight(children);
break;
case 7:
sortByWeight(children);
break;
case 8:
countByGender(children);
break;
case 9:
return 0;
default:
cout << '无效的选择！' << endl;
break;
}
}
return 0;
