优化新增串口

dist-electron/main.js

@@ -1,8 +1,13 @@
 "use strict";
-const electron = require("electron");
 const path = require("path");
+const electron = require("electron");
+const { SerialPort } = require("serialport");
+SerialPort.list().then((res) => {
+  console.log(res);
+});
+let win;
 electron.app.whenReady().then(() => {
-  const win = new electron.BrowserWindow({
+  win = new electron.BrowserWindow({
     title: "银收客",
     width: 1024,
     height: 768,
@@ -46,15 +51,6 @@ electron.app.whenReady().then(() => {
   electron.ipcMain.on("printerInfoSync", (event, params) => {
     printWin.webContents.send("getParams", params);
   });
-  electron.ipcMain.on("printStart", () => {
-    printWin.webContents.printToPDF({}, (error, data) => {
-      if (!error && data) {
-        console.log("成功生成PDF");
-      } else {
-        console.error("无法生成PDF", error);
-      }
-    });
-  });
 });
 electron.app.on("window-all-closed", () => {
   if (process.platform !== "darwin")