创建.cpp/.h文件，复制以下代码即可

//
// Created by Administrator on 2023/3/12.
//

#include <QRegularExpressionMatchIterator>
#include "NetU.h"
void NetU::query(QNetworkReply* reply){
    QString input = reply->readAll();

    QRegularExpression dateRegex("(?:<div class=\"two\")[\\s\\S]*?(?:</div>)");
    QRegularExpressionMatchIterator d = dateRegex.globalMatch(input);

        QRegularExpressionMatch match = d.next();
        QString word = match.captured(0);

    this->getSerAndPackInfo(word);

    this->getSummerize(word);

    QRegularExpression dateRegex2("(?:<div class=\"two-tit\")[\\s\\S]*?(?:</div>)");
    QRegularExpressionMatchIterator d2 = dateRegex2.globalMatch(input);

    QRegularExpressionMatch match2 = d2.next();
    QString word3 = match2.captured(0);

    this->getName(word3);
    this->getType(word3);  //
    QRegularExpression dateRegex3("(?<= xpath=\")[s\\S]*?(?=\")");
    QRegularExpressionMatchIterator d3 = dateRegex3.globalMatch(input);

    QRegularExpressionMatch match3 = d3.next();
    this->URLs = match3.captured(0);
    qDebug()  << this->URLs;

}
void NetU::getSerAndPackInfo(QString div){
    QRegularExpression getsd("(?:<span title=\")[\\s\\S]*?(?:>)");
    QRegularExpressionMatchIterator c = getsd.globalMatch(div.replace("\n",""));

    int count = 0;
    while (c.hasNext()){

        QRegularExpressionMatch cm = c.next();
        if (count == 0){
            this->serID = cm.captured(0).replace("<span title=\"","").replace("\">","");
        }else{
            this->packageID = cm.captured(0).replace("<span title=\"","").replace("\">","");
        }
        count ++;
    }
    qDebug()  << this->serID;
    qDebug()  << this->packageID;
}
void NetU::getName(QString div){
    QRegularExpression getsd("(?:\\)\">)[\\s\\S]*?(?:</a>)");
    QRegularExpressionMatchIterator c = getsd.globalMatch(div.replace("\n",""));

    int count = 0;
    while (c.hasNext()){

        QRegularExpressionMatch cm = c.next();
        if (count == 0){
            QRegularExpression gettp("(?<=>)[\\s\\S]*?(?=</a)");
            QRegularExpressionMatch d  = gettp.match(cm.captured(0));
            this->name = d.captured(0).replace(" ","");
        }else{

        }
        count ++;
    }
    qDebug()  << this->name;

}
void NetU::getSummerize(QString div){
    QRegularExpression getsd("(?:div class=\"multi)[\\s\\S]*?(?:/div)");
    QRegularExpressionMatchIterator c = getsd.globalMatch(div.replace("\n",""));

    int count = 0;
    while (c.hasNext()){

        QRegularExpressionMatch cm = c.next();
        if (count == 0){
            QRegularExpression gettp("(?<=</span>)[\\s\\S]*?(?=</div)");
            QRegularExpressionMatch d  = gettp.match(cm.captured(0));
            this->Summarize = d.captured(0).replace(" ","");
        }else{

        }
        count ++;
    }
    qDebug()  << this->Summarize;

}
void NetU::getType(QString div){
    QRegularExpression getsd("(?: class=\"catalog)[\\s\\S]*?(?:</a>)");
    QRegularExpressionMatchIterator c = getsd.globalMatch(div.replace("\n",""));
    int count = 0;
    while (c.hasNext()){

        QRegularExpressionMatch cm = c.next();
        if (count == 0){
            QRegularExpression gettp("(?<=>)[\\s\\S]*?(?=<)");
            QRegularExpressionMatch d  = gettp.match(cm.captured(0));
            this->type = d.captured(0).replace(" ","");
        }else{

        }
        count ++;
    }

    //(?<=>)[\s\S]*?(?=<)
    qDebug()  << this->type;

}

NetU::NetU() {
    this->NETM = new QNetworkAccessManager();
    QObject::connect(this->NETM,SIGNAL(finished(QNetworkReply*)), this,SLOT(query(QNetworkReply*)));
}

void NetU::GetComponentsInfo(QString ID) {
    QNetworkRequest request(QUrl("https://so.szlcsc.com/global.html?k="+ID+"&hot-key=SS8050"));
    request.setHeader(QNetworkRequest::ContentTypeHeader,"application/x-www-form-urlencoded");
    this->NETM->get(request);
}

// // Created by Administrator on 2023/3/12. // #ifndef PACHONG_NETU_H #define PACHONG_NETU_H #include <QObject> #include <QNetworkReply> class NetU : public QObject { Q_OBJECT public: NetU(); QString serID; QString packageID; QString Summarize; QString name; QString type; QString URLs; void GetComponentsInfo(QString ID); public slots: void query(QNetworkReply *reply); void getSerAndPackInfo(QString div); void getName(QString div); void getSummerize(QString div); void getType(QString div); private: QNetworkAccessManager *NETM; }; #endif //PACHONG_NETU_H 

使用方法：

 NetU *unity = new NetU(); unity->GetComponentsInfo("C"); qDebug()<< "这个器件叫做:"<<unity->name;

输出的信息是：

 "TPM3080PK3-3"
"TO-252"
""
"TPM3080PK3-3"
"场效应管(MOSFET)"
"https://alimg.szlcsc.com/upload/public/product/breviary//B9F531A2FEFEEEFE43F2AC6.jpg"

如果直接加入项目，请加入一个signals，当获取完emit 一下这个signals.

然后在使用的地方 Connect 一下这个信号~~