https://github.com/mygit03/DoJS
基于 Qt5.10.1 调用 Python 脚本实现简单的四则运算
程序通过调用js脚本的函数执行计算（将计算公式写入js脚本，在程序中通过传参数调用js脚本中的函数进行计算，最后将计算结果返回，显示到界面）
//DoJS.pro
#------------------------------------------------- # # Project created by QtCreator 2017-03-22T10:16:33 # #------------------------------------------------- QT += core gui script greaterThan(QT_MAJOR_VERSION, 4): QT += widgets TARGET = DoJS TEMPLATE = app SOURCES += main.cpp\ widget.cpp HEADERS += widget.h FORMS += widget.ui DISTFILES += \ TransCal.js RESOURCES += \ dojs.qrc //widget.h
#ifndef WIDGET_H #define WIDGET_H #include <QWidget> namespace Ui { class Widget; } class Widget : public QWidget { Q_OBJECT public: explicit Widget(QWidget *parent = 0); ~Widget(); void readJS(); private slots: void on_btn_cal_clicked(); private: Ui::Widget *ui; }; #endif // WIDGET_H //widget.cpp
#include "widget.h" #include "ui_widget.h" #include <QDebug> #include <QFile> #include <QTextStream> #include <QScriptEngine> #include <QScriptValue> #include <QScriptValueList> Widget::Widget(QWidget *parent) : QWidget(parent), ui(new Ui::Widget) { ui->setupUi(this); ui->lineEdit_var1->setText("12"); ui->lineEdit_var2->setText("0.5"); } Widget::~Widget() { delete ui; } void Widget::readJS() { QString result = ""; QFile scriptFile(":/TransCal.js"); if (!scriptFile.open(QIODevice::ReadOnly)) { result.clear(); qWarning() << "encodePass.js open failed"; return; } QTextStream out(&scriptFile); QString contents = out.readAll(); scriptFile.close(); double var1 = ui->lineEdit_var1->text().toDouble(); double var2 = ui->lineEdit_var2->text().toDouble(); qDebug() << "var1:" << var1 << "var2:" << var2; QScriptValueList args; //调用js方法时传入的参数 args << QScriptValue(var1) << QScriptValue(var2); QScriptEngine engine; QScriptValue js = engine.evaluate(contents); //个人理解：加载js文本到操作引擎 QScriptValue func; func = engine.globalObject().property("trans2wCal"); //调用js方法 result = func.call(QScriptValue(), args).toString(); qDebug() << "result:" << result; ui->lineEdit_sub->setText(result); func = engine.globalObject().property("trans3wCal"); //调用js方法 result = func.call(QScriptValue(), args).toString(); qDebug() << "result:" << result; ui->lineEdit_mul->setText(result); } void Widget::on_btn_cal_clicked() { readJS(); }
//TransCal.js
//trans.js function trans2wCal(var1,var2) { return var1+var2; } function trans3wCal(var1,var2) { return var1*var2+5; } //资源文件:dojs.qrc --------------------- 作者：GraceLand525 来源：CSDN 原文：https://blog.csdn.net/graceland525/article/details/64906354 版权声明：本文为博主原创文章，转载请附上博文链接！