if (device1.getOnline() == 1){ sum1on++; }else { sum1unon++; } if ("lumi.remote.b186acn01".equals(device1.getDeviceType().getDeviceType())||"lumi.remote.b186acn02".equals(device1.getDeviceType().getDeviceType())||"lumi.remote.b286acn01".equals(device1.getDeviceType().getDeviceType())||"lumi.remote.b286acn02".equals(device1.getDeviceType().getDeviceType())||"lumi.sensor_switch.aq3".equals(device1.getDeviceType().getDeviceType())){ wuxian.add(device1); if (device1.getOnline() == 1){ wuxianon++; }else { wuxianunon++; } }else if ("lumi.ctrl_86plug.aq1".equals(device1.getDeviceType().getDeviceType())){ chazuo.add(device1); if (device1.getOnline() == 1){ chazuoon++; }else { chazuounon++; } }else if ("lumi.ctrl_dualchn".equals(device1.getDeviceType().getDeviceType())){ mokuai.add(device1); if (device1.getOnline() == 1){ mokuaion++; }else { mokuaiunon++; } }else if("lumi.ctrl_neutral1.v1".equals(device1.getDeviceType().getDeviceType())||"lumi.ctrl_neutral2.v1".equals(device1.getDeviceType().getDeviceType())){ danhuo.add(device1); if (device1.getOnline() == 1){ danhuoon++; }else { danhuounon++; } }else if("N0003".equals(device1.getDeviceType().getDeviceType())||"N0005".equals(device1.getDeviceType().getDeviceType())||"N0014".equals(device1.getDeviceType().getDeviceType())){ menshuo.add(device1); if (device1.getOnline() == 1){ menshuoon++; }else { menshuounon++; } }else if("N0004".equals(device1.getDeviceType().getDeviceType())||"N0009".equals(device1.getDeviceType().getDeviceType())){ anfang.add(device1); if (device1.getOnline() == 1){ anfangon++; }else { anfangunon++; } }else { } 优化为 switch 语句

你可以将上述代码优化为switch语句，如下所示：

switch(device1.getDeviceType().getDeviceType()) {
    case "lumi.remote.b186acn01":
    case "lumi.remote.b186acn02":
    case "lumi.remote.b286acn01":
    case "lumi.remote.b286acn02":
    case "lumi.sensor_switch.aq3":
        wuxian.add(device1);
        if (device1.getOnline() == 1) {
            wuxianon++;
        } else {
            wuxianunon++;
        }
        break;
        
    case "lumi.ctrl_86plug.aq1":
        chazuo.add(device1);
        if (device1.getOnline() == 1) {
            chazuoon++;
        } else {
            chazuounon++;
        }
        break;
        
    case "lumi.ctrl_dualchn":
        mokuai.add(device1);
        if (device1.getOnline() == 1) {
            mokuaion++;
        } else {
            mokuaiunon++;
        }
        break;
        
    case "lumi.ctrl_neutral1.v1":
    case "lumi.ctrl_neutral2.v1":
        danhuo.add(device1);
        if (device1.getOnline() == 1) {
            danhuoon++;
        } else {
            danhuounon++;
        }
        break;
        
    case "N0003":
    case "N0005":
    case "N0014":
        menshuo.add(device1);
        if (device1.getOnline() == 1) {
            menshuoon++;
        } else {
            menshuounon++;
        }
        break;
        
    case "N0004":
    case "N0009":
        anfang.add(device1);
        if (device1.getOnline() == 1) {
            anfangon++;
        } else {
            anfangunon++;
        }
        break;
        
    default:
        break;
}

使用switch语句可以提高代码的可读性和可维护性。