Python tkinter GUI drawing, and click to update Display picture

Tkinter drawing GUI is simple and clear, make some simple GUI enough, currently encountered a problem is not to display multiple pictures at the same time (not found at the same time to display the solution),

Back to the second, change to add an Update button, each time the button to update the image automatically, the comment out of the original kernel package, replaced by their own program can be

ImportTkinter as TK fromTkinterImport* fromTkinterImportTTK fromUrllib.requestImportUrlopen fromPILImportImage, IMAGETK#Import make_pic_2 importing its own PY package file hereNum=1URL="./picture/rain.png"defCalculate (*args):Print(Addr.get (),":", Port.get ())#make_pic_2.main (int (Fft.get ()), int (Start.get ()), int (Stop.get ()), int (Cent.get () ))#call your own kernel functiondefChange ():#Update picture Operations    GlobalNum Num=num+1ifnum%3==0:URL1="./picture/rain.png"Pil_image=image.open (URL1) img=imagetk.photoimage (pil_image) label_img.configure (Image=img)ifNum%3==1: Url1="./picture/oscillogram.png"Pil_image=image.open (URL1) img=imagetk.photoimage (pil_image) label_img.configure (Image=img)ifnum%3==2: Url1="./picture/spectrum.png"Pil_image=image.open (URL1) img=imagetk.photoimage (pil_image) label_img.configure (Image=img) root.update_idletasks ()#to update a picture, you must updateRoot=Tk () root.title ("Draw GUI") Mainframe= TTK. Frame (Root, padding="5 4") mainframe.grid (column=0, Row=0, sticky=(N, W, E, S)) mainframe.columnconfigure (0, weight=1) mainframe.rowconfigure (0, weight=1) Addr=stringvar () port=stringvar () FFT=stringvar () cent=stringvar () Start=stringvar () Stop=stringvar () ttk. Label (mainframe, text="Address:"). Grid (Column=1, Row=1, sticky=W) Addr_entry= TTK. Entry (Mainframe, width=7, textvariable=addr) addr_entry.grid (column=2, Row=1, sticky=(W, E)) TTK. Label (mainframe, text="Port:"). Grid (Column=3, Row=1, sticky=W) Port_entry= TTK. Entry (Mainframe, width=7, textvariable=port) Port_entry.grid (column=4, Row=1, sticky=(W, E)) TTK. Label (mainframe, text="FFt:"). Grid (Column=1, row=2, sticky=W) Fft_entry= Ttk.combobox (mainframe, width=7, textvariable=FFT) fft_entry['Values'] = (2048, 4096, 8192) fft_entry.current (1) fft_entry.grid (column=2, row=2, sticky=(W, E)) TTK. Label (mainframe, text="CENTERFR:"). Grid (Column=3, row=2, sticky=W) Cent_entry= TTK. Entry (Mainframe, width=7, textvariable=cent) Cent_entry.grid (column=4, row=2, sticky=(W, E)) TTK. Label (mainframe, text="STARTFR:"). Grid (Column=1, row=3, sticky=W) Start_entry= TTK. Entry (Mainframe, width=7, textvariable=start) start_entry.grid (column=2, Row=3, sticky=(W, E)) TTK. Label (mainframe, text="STOPFR:"). Grid (Column=3, row=3, sticky=W) Stop_entry= TTK. Entry (Mainframe, width=7, textvariable=stop) stop_entry.grid (column=4, Row=3, sticky=(W, E)) TTK. Button (mainframe, text="draw!", command=calculate). Grid (column=2, row=4, sticky=W) TTK. Button (mainframe, text="update!", Command=change). Grid (Column=4, row=4, sticky=W) Pil_image=image.open (URL) img=imagetk.photoimage (pil_image) label_img= TTK. Label (root, Image = img, compound=CENTER) label_img.grid (column=0,row=5, sticky=W) forChildinchMainframe.winfo_children (): Child.grid_configure (padx=5, pady=5) Addr_entry.focus () Root.bind ('<Return>', calculate)#The main loop, except that the line can be looped all the time, and the other rows are executed only onceRoot.mainloop ()

Python tkinter GUI drawing, and click to update Display picture