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发表于 8-12-2016 04:09 PM
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你看看行不行.
243開始自己改吧
#include <iostream>
#include <fstream>
#include <string>
#include <vector>
#include <sstream>
#include <algorithm>
#include <cmath>
#include <vector>
#include "Student.h"
#include "Module.h"
using namespace std;
void printMenu();
vector<Student> readFile();
void liststudentRecord(vector<Student> ;
string trim(string);
bool isValidClasscode(string s);
bool isvalidStudentid(string s);
bool test1Ascending(Student s1, Student s2);
bool test1Desscending(Student s1, Student s2);
bool test1finalScoreAscending(Student s1, Student s2);
vector<Module> readFile2();
void listmoduleRecord(vector<Module>;
bool moduleName(Module m1, Module m2);
vector<Student> getStudentByModule(vector<Student>, string);
bool isDuplicateStudentRecord(vector<Student>, Student);
// gloval variable
vector<Student> duplicates;
int main() {
int choice;
vector<Student> students; // list of student
vector<Module> modules;
vector<Student> list;
do {
printMenu();
cin >> choice;
switch (choice) {
case 1:
cout << "Read Student file ... " << endl;
students = readFile();
cout << "Number of records read: " << students.size() << endl;
break;
case 2:
liststudentRecord(students);
break;
case 3:
cout << "Read Module file ... " << endl;
modules = readFile2();
cout << "Number of records read: " << modules.size() << endl;
break;
case 4:
listmoduleRecord(modules);
break;
case 5:
liststudentRecord(duplicates);
break;
case 6:
cout << "Enter Module Code: ";
{
string code;
cin >> code;
list = getStudentByModule(students, code);
for (unsigned long i = 0; i < list.size(); i++) {
Student s = list.at(i);
cout << s.toString() << endl;
}
}
cout << "List Student by Module Code" << endl;
break;
case 7:
// http://www.cplusplus.com/reference/algorithm/sort/
// sort(students.begin(), students.end(), test1finalScoreAscending);
sort(students.begin(), students.end(),
test1finalScoreAscending); // finalScoreAcending
break;
case 8:
break;
case 9:
cout << "Exiting program... " << endl;
break;
default:
cout << "Invalid option specified. Please try again" << endl;
}
} while (choice != 9);
return 0;
}
void printMenu() {
cout << "Menu" << endl;
cout << "----" << endl;
cout << "[1] Read student file" << endl;
cout << "[2] List student records" << endl;
cout << "[3] Read module file" << endl;
cout << "[4] List module records" << endl;
cout << "[5] List Duplicate Record" << endl;
cout << "[6] Display Student by Module" << endl;
cout << "[7] Sort by Final Score" << endl;
cout << "[8] Write to file" << endl;
cout << "[9] Exit" << endl;
cout << "Choice: ";
}
vector<Student> readFile() {
vector<Student> students;
string filename;
ifstream inputFile;
cout << "Enter filename: ";
cin >> filename;
inputFile.open(filename, ios::in); // open file, read only
if (inputFile.is_open()) {
while (inputFile.good()) {
string line;
getline(inputFile, line);
Student s; // create a new student
// extract id
int i = line.find(",";
string id = trim(line.substr(0, i)); // extract id
s.setId(id); // set student id
line = line.substr(i + 1); // remove id form line
/*if(isvalidStudentid(id)){
string s = id.substr(0,1);
const char* s = id.substr(1,7);
}*/
// extract name
i = line.find(",";
string name = trim(line.substr(0, i)); // extract name
s.setName(name); // set student name
line = line.substr(i + 1); // remove name from line
// extract classcode
i = line.find(",";
string classcode = trim(line.substr(0, i));
s.setClasscode(classcode);
line = line.substr(i + 1);
if (isValidClasscode(classcode)) {
string module = classcode.substr(0, 6);
s.setModule(module);
string status = classcode.substr(7, 9);
const char *ft = "FT";
if (status.compare(ft) == 0) {
s.setFulltime(true);
} else {
s.setFulltime(false);
}
string classnumber = classcode.substr(9, 11);
s.setClassnumber(classnumber);
}
// to use a for-loop for attendance
for (int j = 0; j < 10; j++) {
i = line.find(",";
string attendance = trim(line.substr(0, i));
s.setAttendance(j, attendance);
line = line.substr(i + 1);
}
// to extreact test1
i = line.find(",";
int test1 = stoi(line.substr(0, i));
s.setTest1(test1);
line = line.substr(i + 1);
// to extreact test2
i = line.find(",";
int test2 = stoi(line.substr(0, i));
s.setTest2(test2);
line = line.substr(i + 1);
// to extreact tutorial
i = line.find(",";
int tutorial = stoi(line.substr(0, i));
s.setTutorial(tutorial);
line = line.substr(i + 1);
// to extreact exam
i = line.find(",";
int exam = stoi(line.substr(0, i));
s.setExam(exam);
line = line.substr(i + 1);
// need to do validationfirst
// to only add the valid student
if (isDuplicateStudentRecord(students, s) == false) {
students.push_back(s); // add student to list
} else {
duplicates.push_back(s);
}
// cout<< line << endl;
}
inputFile.close();
} else {
cout << "Invalid file" << endl;
}
return students;
}
void liststudentRecord(vector<Student> list) {
int numberStudents = list.size();
if (numberStudents > 0) {
for (int i = 0; i < numberStudents; i++) {
Student s = list.at(i);
cout << s.toString() << endl;
}
} else {
cout << "Empty list" << endl;
}
}
bool test1Ascending(Student s1, Student s2) {
return s1.getTest1() < s2.getTest1();
}
bool test1Descending(Student s1, Student s2) {
return s1.getTest1() < s2.getTest1();
}
bool finalScoreAscending(Student s1, Student s2) {
return s1.getFinalScore() < s2.getFinalScore();
}
bool isvalidStudentid(string s) {
int i;
if (s.length() != 8) {
return false;
} // first check th length is 8
if (s.at(i) != 'S') {
return false;
} // start with s
for (i = 1; i < 8; i++) { // 7 digit
if (isdigit(s.at(i)) == 0) {
return false;
}
}
return false;
}
bool isValidClasscode(string s) {
int i;
if (s.length() != 11) {
return false;
} // first check th length is 8
for (i = 0; i < 3; i++) { // first 3 char are letters
if (isalpha(s.at(i)) == 0) {
return false;
}
}
for (i = 3; i < 6; i++) { // next 3 char are number
if (isdigit(s.at(i)) == 0) {
return false;
}
}
if (s.at(6) != '-') {
return false;
} // has a hyphen
if (s.at(7) != 'F' && s.at(7) != 'P') {
return false;
}
if (s.at(8) != 'T') {
return false;
} // T
if (isdigit(s.at(9)) == 0 || isdigit(s.at(10)) == 0) {
return false;
}
return false;
}
vector<Module> readFile2() {
vector<Module> modules;
string filename;
ifstream inputFile;
cout << "Enter filename: ";
cin >> filename;
inputFile.open(filename, ios::in); // open file, read only
if (inputFile.is_open()) {
while (inputFile.good()) {
string line;
getline(inputFile, line);
Module m; // create a new student
// extract name
int i = line.find(",";
string modulecode = trim(line.substr(0, i)); // extract id
m.setModulecode(modulecode); // set student id
// cout << id<< endl;
line = line.substr(i + 1); // remove id form line
// cout << line << endl;
// extract id
i = line.find(",";
string modulename = trim(line.substr(0, i)); // extract name
m.setModulename(modulename); // set student name
line = line.substr(i + 1); // remove name from line
// to extreact test1
i = line.find(",";
int test1 = stoi(line.substr(0, i));
m.setTest1(test1);
line = line.substr(i + 1);
// to extreact test2
i = line.find(",";
int test2 = stoi(line.substr(0, i));
m.setTest2(test2);
line = line.substr(i + 1);
// to extreact tutorial
i = line.find(",";
int tutorial = stoi(line.substr(0, i));
m.setTutorial(tutorial);
line = line.substr(i + 1);
// to extreact exam
i = line.find(",";
int exam = stoi(line.substr(0, i));
m.setExam(exam);
line = line.substr(i + 1);
modules.push_back(m); // add student to list
// cout<< line << endl;
}
inputFile.close();
} else {
cout << "Invalid file" << endl;
}
return modules;
}
void listmoduleRecord(vector<Module> list) {
int numberModules = list.size();
if (numberModules > 0) {
for (int i = 0; i < list.size(); i++) {
Module m = list.at(i);
cout << m.toString() << endl;
}
} else {
cout << "Empty list" << endl;
}
}
vector<Student> getStudentByModule(vector<Student> students, string code) {
vector<Student> list;
for (int i = 0; i < students.size(); i++) {
Student s = students.at(i);
if (code.compare(current_module) == 0) {
list.push_back(s);
}
}
return list;
}
bool isDuplicateStudentRecord(vector<Student> student, Student s) {
string id = student.getId();
string name = student.getName();
string module = student.getModule();
for (int i = 0; i < student.size(); i++) {
Student s = student.at(i);
string current_id = s.getId();
string current_name = s.getName();
string current_module = s.getModule();
if (id.compare)
(current_id) == 0 && name.compare(current_name) == 0 &&
(module.compare(current_module) == 0);
{ return true; }
}
return false;
}
// http://stackoverflow.com/a/6500499/3839235
string trim(string s) {
s.erase(0, s.find_first_not_of(' ')); // prefixing spaces
s.erase(s.find_last_not_of(' ') + 1); // surfixing spaces
return s;
}
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楼主 |
发表于 9-12-2016 09:38 AM
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yan13 发表于 8-12-2016 04:09 PM
你看看行不行.
243開始自己改吧
#include
#include
#include
#include
#include
#include
#include
#include
#include "Student.h"
#include "Module.h"
using namespace std;
void p ...
可以帮帮吗？
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发表于 9-12-2016 09:58 AM
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楼主 |
发表于 9-12-2016 10:10 AM
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就是帮我看看全部的code对吗？因为是assignment， 我是 0 knowledge c++.
如果可以的话，我email你全部的code。 ok吗？
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发表于 9-12-2016 04:46 PM
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我想你應該知道的,不過我總是要意思意思的提醒一下.Assignment是要自己做的,不懂的我可以幫,但不能全部幫你做.好了.有什麼我們可以一起學習.code拿來吧,我工作累了就看看
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楼主 |
发表于 9-12-2016 05:06 PM
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发表于 9-12-2016 06:07 PM
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cry8383 发表于 9-12-2016 05:06 PM
当然assignment，我今天也solved 了全部的error。 现在是complied那不到要的result。case: 6那一边出问题。 不知道哪里错，就是没有error。
https://www.dropbox.com/s/jsnidkhz9f1q8pw/partb.zip?dl=0
...
你用什麼IDE的?
我用VC++
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楼主 |
发表于 9-12-2016 07:22 PM
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发表于 9-12-2016 07:36 PM
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麻煩給我整個folder.謝謝 |
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楼主 |
发表于 10-12-2016 07:52 AM
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发表于 14-12-2016 02:57 PM
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Java還沒開始coding,不算學.C++類似Java,你上手會比較快.我下載了.等等看看
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发表于 18-12-2016 06:51 PM
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 vs2015 repaired 了也re installed了,還是開不到你的project
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楼主 |
发表于 6-1-2017 08:06 AM
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发表于 6-1-2017 10:23 AM
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 恭喜
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发表于 5-8-2017 11:20 AM
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为什么发代码不用 <> ? 这样比较整齐啊 
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发表于 5-11-2018 04:33 PM
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yan13 发表于 8-12-2016 04:09 PM
你看看行不行.
243開始自己改吧
#include
#include
#include
#include
#include
#include
#include
#include
#include "Student.h"
#include "Module.h"
using namespace std;
void p ...
什么是vector?我之前学C++的时候曾经看过有个同学问Lecturer能不能用vector，但是最后lecturer不给啦，我也没有学过
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发表于 5-11-2018 06:16 PM
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當他是array好了.array, list之類的.詳細的就不懂了.
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发表于 6-11-2018 06:49 AM
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vector大致上和array是一样，只是在storage allocation上不同，如果你很频密insert大数据，vector有performance或dynamic size growing的优势
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