一、添加本地图标
注:本地导入的图标名可以为中文
ui->actionnew_3->setIcon(QIcon("C:\\Users\\Admin\\Desktop\\新建.png"));
ui->actionnew_3->setIcon(QIcon("C:/Users/Admin/Desktop/新建.png"));

二、导入资源
#include "mainwindow.h" #include "ui_mainwindow.h" MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow) {
ui->setupUi(this); ui->actionnew->setIcon(QIcon(":/prefix1/image/construction.png")); ui->actionnew_2->setIcon(QIcon(":/prefix1/image/open.png")); ui->actionnew_3->setIcon(QIcon(":/prefix1/image/preserve.png")); } MainWindow::~MainWindow() {
delete ui; }
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