我这样写对不对import warn ww = QMainWindow() ui2 = warn.Ui_Form() ui2.setupUi(ww) if flag: ww.show()

你的代码中缺少了一个关键的部分，就是import语句中的模块名。假设你要导入的是一个名为warn的模块，那么你的代码可以改写为如下形式：

import warn
from PyQt5.QtWidgets import QMainWindow

ww = QMainWindow()
ui2 = warn.Ui_Form()
ui2.setupUi(ww)
if flag:
    ww.show()

这里我们使用了import语句来导入名为warn的模块。然后我们创建了一个QMainWindow实例ww，接着我们使用warn模块中定义的Ui_Form类来创建一个ui2实例，并调用它的setupUi()方法，将ww设置为它的父窗口。

最后，我们根据flag的值来决定是否显示ww窗口。

注意，这里的warn.Ui_Form()表示的是warn模块中定义的Ui_Form类。如果你的warn模块中没有定义Ui_Form类，那么你需要根据你的实际情况来修改这个部分的代码。

相关问题

优化这段代码： IF VR(v_alarm1).0 <> ax_alarm.ax_dial THEN VR(v_alarm1).0 = ax_alarm.ax_dial IF VR(v_alarm1).1 <> ax_alarm.ax_scr1_updown THEN VR(v_alarm1).1 = ax_alarm.ax_scr1_updown IF VR(v_alarm1).2 <> ax_alarm.ax_scr1_halftone THEN VR(v_alarm1).2 = ax_alarm.ax_scr1_halftone IF VR(v_alarm1).3 <> ax_alarm.ax_scr1_scraper THEN VR(v_alarm1).3 = ax_alarm.ax_scr1_scraper IF VR(v_alarm1).4 <> ax_alarm.ax_scr2_updown THEN VR(v_alarm1).4 = ax_alarm.ax_scr2_updown IF VR(v_alarm1).5 <> ax_alarm.ax_scr2_halftone THEN VR(v_alarm1).5 = ax_alarm.ax_scr2_halftone IF VR(v_alarm1).6 <> ax_alarm.ax_scr2_scraper THEN VR(v_alarm1).6 = ax_alarm.ax_scr2_scraper IF VR(v_alarm1).7 <> ax_alarm.ax_scr3_updown THEN VR(v_alarm1).7 = ax_alarm.ax_scr3_updown IF VR(v_alarm1).8 <> ax_alarm.ax_scr3_halftone THEN VR(v_alarm1).8 = ax_alarm.ax_scr3_halftone IF VR(v_alarm1).9 <> ax_alarm.ax_scr3_scraper THEN VR(v_alarm1).9 = ax_alarm.ax_scr3_scraper IF VR(v_alarm1).10 <> ax_alarm.ax_goin_spin THEN VR(v_alarm1).10 = ax_alarm.ax_goin_spin IF VR(v_alarm1).11 <> ax_alarm.ax_output_spin THEN VR(v_alarm1).11 = ax_alarm.ax_output_spin IF VR(v_alarm1).12 <> ax_alarm.ax_tl THEN VR(v_alarm1).12 = ax_alarm.ax_tl IF VR(v_alarm1).13 <> ax_alarm.ax_work1 THEN VR(v_alarm1).13 = ax_alarm.ax_work1 IF VR(v_alarm1).14 <> ax_alarm.ax_work2 THEN VR(v_alarm1).14 = ax_alarm.ax_work2 IF VR(v_alarm1).15 <> ax_alarm.ax_work3 THEN VR(v_alarm1).15 = ax_alarm.ax_work3 IF VR(v_alarm2).0 <> ax_alarm.ax_work4 THEN VR(v_alarm2).0 = ax_alarm.ax_work4 IF VR(v_alarm2).1 <> ax_alarm.ax_work5 THEN VR(v_alarm2).1 = ax_alarm.ax_work5 IF VR(v_alarm2).2 <> ax_alarm.ax_work6 THEN VR(v_alarm2).2 = ax_alarm.ax_work6 IF VR(v_alarm2).3 <> ax_alarm.ax_work7 THEN VR(v_alarm2).3 = ax_alarm.ax_work7 IF VR(v_alarm2).4 <> ax_alarm.ax_work8 THEN VR(v_alarm2).4 = ax_alarm.ax_work8 IF VR(v_alarm2).5 <> ax_alarm.ax_work9 THEN VR(v_alarm2).5 = ax_alarm.ax_work9 IF VR(v_alarm2).6 <> ax_alarm.ax_work10 THEN VR(v_alarm2).6 = ax_alarm.ax_work10 IF VR(v_warn1).0 <> ax_warn.ax_dial THEN VR(v_warn1).0 = ax_warn.ax_dial IF VR(v_warn1).1 <> ax_warn.ax_scr1_updown THEN VR(v_warn1).1 = ax_warn.ax_scr1_updown IF VR(v_warn1).2 <> ax_warn.ax_scr1_halftone THEN VR(v_warn1).2 = ax_warn.ax_scr1_halftone IF VR(v_warn1).3 <> ax_warn.ax_scr1_scraper THEN VR(v_warn1).3 = ax_warn.ax_scr1_scraper IF VR(v_warn1).4 <> ax_warn.ax_scr2_updown THEN VR(v_warn1).4 = ax_warn.ax_scr2_updown IF VR(v_warn1).5 <> ax_warn.ax_scr2_halftone THEN VR(v_warn1).5 = ax_warn.ax_scr2_halftone IF VR(v_warn1).6 <> ax_warn.ax_scr2_scraper THEN VR(v_warn1).6 = ax_warn.ax_scr2_scraper IF VR(v_warn1).7 <> ax_warn.ax_scr3_updown THEN VR(v_warn1).7 = ax_warn.ax_scr3_updown IF VR(v_warn1).8 <> ax_warn.ax_scr3_halftone THEN VR(v_warn1).8 = ax_warn.ax_scr3_halftone IF VR(v_warn1).9 <> ax_warn.ax_scr3_scraper THEN VR(v_warn1).9 = ax_warn.ax_scr3_scraper IF VR(v_warn1).10 <> ax_warn.ax_goin_spin THEN VR(v_warn1).10 = ax_warn.ax_goin_spin IF VR(v_warn1).11 <> ax_warn.ax_output_spin THEN VR(v_warn1).11 = ax_warn.ax_output_spin IF VR(v_warn1).12 <> ax_warn.ax_tl THEN VR(v_warn1).12 = ax_warn.ax_tl IF VR(v_warn1).13 <> ax_warn.ax_work1 THEN VR(v_warn1).13 = ax_warn.ax_work1 IF VR(v_warn1).14 <> ax_warn.ax_work2 THEN VR(v_warn1).14 = ax_warn.ax_work2 IF VR(v_warn1).15 <> ax_warn.ax_work3 THEN VR(v_warn1).15 = ax_warn.ax_work3 IF VR(v_warn2).0 <> ax_warn.ax_work4 THEN VR(v_warn2).0 = ax_warn.ax_work4 IF VR(v_warn2).1 <> ax_warn.ax_work5 THEN VR(v_warn2).1 = ax_warn.ax_work5 IF VR(v_warn2).2 <> ax_warn.ax_work6 THEN VR(v_warn2).2 = ax_warn.ax_work6 IF VR(v_warn2).3 <> ax_warn.ax_work7 THEN VR(v_warn2).3 = ax_warn.ax_work7 IF VR(v_warn2).4 <> ax_warn.ax_work8 THEN VR(v_warn2).4 = ax_warn.ax_work8 IF VR(v_warn2).5 <> ax_warn.ax_work9 THEN VR(v_warn2).5 = ax_warn.ax_work9 IF VR(v_warn2).6 <> ax_warn.ax_work10 THEN VR(v_warn2).6 = ax_warn.ax_work10

可以将代码优化为：

FOR i = TO 6
IF VR(v_alarm1).i <> ax_alarm.ax_scr1_updown+i THEN VR(v_alarm1).i = ax_alarm.ax_scr1_updown+i
IF VR(v_alarm1).i+3 <> ax_alarm.ax_scr2_updown+i THEN VR(v_alarm1).i+3 = ax_alarm.ax_scr2_updown+i
IF VR(v_alarm1).i+6 <> ax_alarm.ax_scr3_updown+i THEN VR(v_alarm1).i+6 = ax_alarm.ax_scr3_updown+i
IF VR(v_warn1).i <> ax_warn.ax_scr1_updown+i THEN VR(v_warn1).i = ax_warn.ax_scr1_updown+i
IF VR(v_warn1).i+3 <> ax_warn.ax_scr2_updown+i THEN VR(v_warn1).i+3 = ax_warn.ax_scr2_updown+i
IF VR(v_warn1).i+6 <> ax_warn.ax_scr3_updown+i THEN VR(v_warn1).i+6 = ax_warn.ax_scr3_updown+i
NEXT i

FOR i = 10 TO 15
IF VR(v_alarm1).i <> ax_alarm.ax_goin_spin+i-10 THEN VR(v_alarm1).i = ax_alarm.ax_goin_spin+i-10
IF VR(v_alarm1).i+2 <> ax_alarm.ax_tl+i-10 THEN VR(v_alarm1).i+2 = ax_alarm.ax_tl+i-10
IF VR(v_alarm1).i-10 <> ax_alarm.ax_work1+i-10 THEN VR(v_alarm1).i-10 = ax_alarm.ax_work1+i-10
IF VR(v_alarm1).i-7 <> ax_alarm.ax_work4+i-10 THEN VR(v_alarm1).i-7 = ax_alarm.ax_work4+i-10
IF VR(v_warn1).i <> ax_warn.ax_goin_spin+i-10 THEN VR(v_warn1).i = ax_warn.ax_goin_spin+i-10
IF VR(v_warn1).i+2 <> ax_warn.ax_tl+i-10 THEN VR(v_warn1).i+2 = ax_warn.ax_tl+i-10
IF VR(v_warn1).i-10 <> ax_warn.ax_work1+i-10 THEN VR(v_warn1).i-10 = ax_warn.ax_work1+i-10
IF VR(v_warn1).i-7 <> ax_warn.ax_work4+i-10 THEN VR(v_warn1).i-7 = ax_warn.ax_work4+i-10
NEXT i

这样可以减少代码行数，提高代码的可读性和可维护性。

pkg_resources.py2_warn

Q: 'pkg_resources.py2_warn' 是什么？

A: 'pkg_resources.py2_warn' 是 Python 模块 'pkg_resources' 中的一个属性，用于在 Python 2.x 版本中发出警告。它通常在 Python 2.x 中导入 'setuptools' 时使用，以提醒用户此版本的 Python 已经不再维护，建议升级到更高版本的 Python。在 Python 3.x 中，没有这个属性，因为已经不需要提醒用户。