用c++写的一个词典工具

使用的QT图形界面，用libcurl获取的网页，在之中遇见了很多问题，一直想用c++类封装一下libcurl,发现c++很不到家啊。索性用了友元函数。

先贴上代码吧

main.cpp 

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

#include <curl/curl.h>
#include <curl/types.h>
#include <curl/easy.h>

#include <QtGui/QApplication>

#define mydebug 0

using namespace std;

#include "Dict.h"

FILE *fp; //定义FILE类型指针

size_t write_data(void *ptr, size_t size, size_t nmemb, void *stream)
{
    int written = fwrite(ptr, size, nmemb, (FILE *)fp);
    return written;
}

int getpage(QString aUrl)
{
        CURL *curl;

        QString mUrl="";
        mUrl.append("http://dict.baidu.com/s?wd=");
        mUrl.append(aUrl);
        mUrl.append("&tn=dict");

        curl_global_init(CURL_GLOBAL_ALL);
        curl=curl_easy_init();

        QByteArray ba = mUrl.toLatin1();
        const char *c_str2 = ba.data();

        curl_easy_setopt(curl,CURLOPT_URL,c_str2);

        if((fp=fopen("/home/archy/newfile","w"))==NULL)
        {
                curl_easy_cleanup(curl);
                exit(1);
        }

        curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);

        curl_easy_perform(curl);
        curl_easy_cleanup(curl);
        return 0;
}

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);

    Dialog w;
    w.show();

    return a.exec();
}

Dict.h

#ifndef DICT_H
#define DICT_H

#include <QtGui>
#include "translate.h"
#include "one.h"

class QPushButton;
class QLineEdit;
class QTextEdit;

class Dialog : public QDialog
{
    Q_OBJECT

public:
    Dialog(QWidget *parent = 0);
    ~Dialog();

    friend int getpage(QString aUrl);
    QString getResult();

private slots:
    void clearItem();
    void searchItem();
    void UpdateClearBtn();
    void UpdateSearchBtn();

private:
    QPushButton *mClearBtn;
    QPushButton *mSearchBtn;
    QLineEdit *mItem;
    QTextEdit *mResult;
    one *aone;
};

#endif // DICT_H

 Dict.cpp

1 #include <QtGui/QHBoxLayout>
#include <QtGui/QVBoxLayout>
#include "Dict.h"
#include <QMessageBox>

extern int getpage(QString aUrl);

Dialog::Dialog(QWidget *parent)
    : QDialog(parent)
{
    //init class of translate
    //aone = new one();
    //init controls
    mClearBtn = new QPushButton("Clear");
    mSearchBtn = new QPushButton("Search");

    mClearBtn->setFlat(1);
    mClearBtn->setFixedSize(50,30);
    mSearchBtn->setFlat(1);
    mSearchBtn->setFixedSize(50,30);

    mItem = new QLineEdit;
    mResult = new QTextEdit;

    connect(mClearBtn,SIGNAL(clicked()),this,SLOT(clearItem()));
    connect(mSearchBtn,SIGNAL(clicked()),this,SLOT(searchItem()));

    QHBoxLayout *aHbox = new QHBoxLayout;
    aHbox->addWidget(mClearBtn);
    aHbox->addWidget(mItem);
    aHbox->addWidget(mSearchBtn);

    QVBoxLayout *aVbox = new QVBoxLayout;
    aVbox->addLayout(aHbox);
    aVbox->addWidget(mResult);
    setLayout(aVbox);
}

QString Dialog::getResult()
{
    FILE *fp;

    char tem;
    char buffer[2000],final[200];
    int line = 1,counti=0,token = 0,finalcount=0;

    fp = fopen("/home/archy/newfile","r");

    while((tem = fgetc(fp))!=EOF)
    {
        if(tem=='\n')
        {
              line++;
              if(line==427)
              {
                    break;
              }
        }
            //line++;
    }

    fgets(buffer,2000,fp);

    while(buffer[counti]!='\n' && counti < 2000)
    {
            if(buffer[counti] == '<')
            {
                    token  = 0;
            }
            else if(buffer[counti] == '>')
            {
                    token = 1;
            }
            else if(buffer[counti] != '>' && buffer[counti] != '<' && token == 1)
            {
                    final[finalcount] = buffer[counti];
                    finalcount ++;
            }
            counti ++;
    }

    final[finalcount] = '\0';

    //QMessageBox msgBox;
    //msgBox.setText(final);
    //msgBox.exec();

    //
    QString string = QString(QLatin1String(final));
//    QTextCodec::setCodecForCStrings(QTextCodec::codecForName("GB2312"));
    QTextCodec::setCodecForCStrings(QTextCodec::codecForName("UTF-8"));
    return string;
}

void Dialog::clearItem()
{
    mItem->setText("");
}

void Dialog::searchItem()
{

    if(mItem->text() != "")
    {
        getpage(mItem->text());
        QString astring = getResult();

        //QMessageBox msgBox;
        //msgBox.setText(astring);
        //msgBox.exec();

        mResult->setText(astring);
    }
}

Dialog::~Dialog()
{

}

还有一个问题就是乱码的问题。

 因为是提取的网页，只能一个char一个char那样提取，现在还是没有想到什么其他办法提取。之后在char[] 转 QString 的时候，总是乱码。

 哪位博友知道怎么解决的话，请给点线索。