似乎我的Tkinter GUI很好但是当加载应该激活类方法的按钮时会执行nadda。 我原本试图在main中启动一个类实例： if_ name _ ==“ main ”： ed.EditorUI（） 在'ed'下面使用'self'的地方就在它的位置......它说ed是未定义的，这促使我尝试这种方式。 你可以说它已经过了几年，因为我编码了。 非常感谢您的帮助！
import CU_picture
import filters
import Tkinter
root = Tk()
root.title('Photo Editor Version 1.10')
#root.iconbitmap(bitmap = '12.ico')
#img = PhotoImage(file='12.ico')
#root.tk.call('wm', 'iconphoto', root._w, img)
#Adding File Menu
menubar = Tkinter.Menu(root)
filemenu = Tkinter.Menu(menubar, tearoff=0)
filemenu.add_command(label="Exit", command=root.quit)
menubar.add_cascade(label="File", menu=filemenu)
#Display above menus
root.config(menu=menubar)
class EditorUI(object):
def __init__(self):
self.name = "EditorUI"
self.pic = 0
self.pix = CU_picture.Picture()
self.filters = "No Current Filters Applied"
self.special = "cake"
def get_specific_color(color):
if color == "red":
return CU_picture.Color(255, 0, 0)
elif color == "aqua":
return CU_picture.Color(0, 255, 255)
elif color == "fuschia":
return CU_picture.Color(255, 0, 255)
elif color == "lime":
return CU_picture.Color(0, 255, 0)
elif color == "yellow":
return CU_picture.Color(255, 255, 0)
def load():
self.pix = get_picture()
self.pix.show()
self.pic = 1
error.set("Pic Loaded: "+self.filters)
outtext.set("New Picture - Not Saved.")
self.filters = "No Current Filters Applied"
self.special = "cake"
para.set("")
def save():
if self.pic == 0:
error.set("No Pic Loaded")
else:
name = intext.get() + ".jpg"
self.pix.write_to(name)
outtext.set("Saved To Given Filename.")
para.set("")
def negative():
if self.pic == 0:
error.set("No Pic Loaded")
else:
n = filters.NegativeFilter()
n.apply(ed.pix)
self.pix.show()
para.set("")
if self.filters == "No Current Filters Applied":
self.filters = "Negative-F"
error.set("Pic Loaded + Current Filters: "+self.filters)
else:
self.filters = self.filters + ", Negative-F"
error.set("Pic Loaded + Current Filters: "+self.filters)
def grayscale():
if self.pic == 0:
error.set("No Pic Loaded")
else:
g = filters.GrayScaleFilter()
g.apply(self.pix)
self.pix.show()
para.set("")
if self.filters == "No Current Filters Applied":
self.filters = "Grayscale-F"
error.set("Pic Loaded + Current Filters: "+self.filters)
else:
self.filters = self.filters + ", Grayscale-F"
error.set("Pic Loaded + Current Filters: "+self.filters)
def posterize():
if self.pic == 0:
error.set("No Pic Loaded")
else:
p = filters.PosterizeFilter()
p.apply(self.pix)
self.pix.show()
para.set("")
if self.filters == "No Current Filters Applied":
self.filters = "Posterize-F"
error.set("Pic Loaded + Current Filters: "+self.filters)
else:
self.filters = self.filters + ", Posterize-F"
error.set("Pic Loaded + Current Filters: "+self.filters)
def highlight():
if self.pic == 0:
error.set("No Pic Loaded")
else:
if intext.get() == "":
para.set("Input Highlight distance/Colour and try again(one at a time).")
elif self.special == "cake" and intext.get() != "":
self.special = intext.get()
outtext.set("Highlight distance: " + self.special)
para.set("Input Highlight colour(red, blue, aqua, fuschia, lime, yellow) for the final step.")
elif self.special != "cake" and intext.get() != "":
color = get_specific_color(intext.get())
h = filters.HighlightFilter()
h.set_distance(float(self.special))
h.set_color(color)
outtext.set("Highlight colour: " + intext.get())
h.apply(self.pix)
self.pix.show()
if self.filters == "No Current Filters Applied":
self.filters = "Highlight-F"
error.set("Pic Loaded + Current Filters: "+self.filters)
else:
self.filters = self.filters + ", Highlight-F"
error.set("Pic Loaded + Current Filters: "+self.filters)
def edge():
if self.pic == 0:
error.set("No Pic Loaded")
else:
para.set("Threshold?")
if intext.get() == "":
para.set("Input Threshold value and try again.")
else:
para.set("Threshold: " + intext.get())
e = filters.EdgeFilter()
e.set_threshold(float(intext.get()))
e.apply(self.pix)
self.pix.show()
if self.filters == "No Current Filters Applied":
self.filters = "Edge-F"
error.set("Pic Loaded + Current Filters: "+self.filters)
else:
self.filters = self.filters + ", Edge-F"
error.set("Pic Loaded + Current Filters: "+self.filters)
def get_picture():
"""
Interactively select a picture file and return it.
"""
# Pop up a dialogue box to select a file
file = CU_picture.pick_a_file()
# Open the file containing the picture and load it
pict = CU_picture.load_picture(file)
return pict
if __name__ == "__main__":
EditorUI()
intext = Tkinter.StringVar()
outtext = Tkinter.StringVar()
error = Tkinter.StringVar()
para = Tkinter.StringVar()
inp = Tkinter.Entry(root, textvariable=intext)
out = Tkinter.Label(root, textvariable=outtext)
ER = Tkinter.Label(root, textvariable=error)
P = Tkinter.Label(root, textvariable=para)
load = Tkinter.Button(root, text="Load", height=2, width=20, command=load)
save = Tkinter.Button(root, text="Save", height=2, width=20, command=save)
negative = Tkinter.Button(root, text="Negative-F", height=1, width=20, command=negative)
grayscale = Tkinter.Button(root, text="Grayscale-F", height=1, width=20, command=grayscale)
posterize = Tkinter.Button(root, text="Posterize-F", height=1, width=20, command=posterize)
highlight = Tkinter.Button(root, text="Highlight-F", height=1, width=20, command=highlight)
edge = Tkinter.Button(root, text="Edge-F", height=1, width=20, command=edge)
inp.grid(row=1, column=7)
ER.grid(row=0, column= 0, columnspan=5, rowspan=2)
out.grid(row=1, column= 0, columnspan=5, rowspan=2)
P.grid(row=2, column= 0, columnspan=5, rowspan=2)
load.grid(row=0, column=6)
save.grid(row=0, column=7)
negative.grid(row=1, column=6)
grayscale.grid(row=3, column=7)
posterize.grid(row=3, column=6)
highlight.grid(row=2, column=6)
edge.grid(row=2, column=7)
root.mainloop()
答案 0 :(得分：1)
我看到的一个主要问题（除了上面提到的@ A.Rodas）会阻止按钮执行任何操作，因为按钮命令实际上并不是针对类方法。他们正在寻找名为“load”，“save”等的根级别callables。因为这些不存在，你应该得到错误，但是你说除了不合作的按钮之外界面工作正常，对我有意义。
要调用类方法，必须创建该类的实例。首先解决上面@ A.Rodas提到的self问题，然后将__main__检查替换为：
editor = EditorUI()
然后修改按钮命令以调用编辑器实例上的方法：
load = Tkinter.Button(root, text="Load", height=2, width=20, command=editor.load)
save = Tkinter.Button(root, text="Save", height=2, width=20, command=editor.save)
negative = Tkinter.Button(root, text="Negative-F", height=1, width=20, command=editor.negative)
grayscale = Tkinter.Button(root, text="Grayscale-F", height=1, width=20, command=editor.grayscale)
posterize = Tkinter.Button(root, text="Posterize-F", height=1, width=20, command=editor.posterize)
highlight = Tkinter.Button(root, text="Highlight-F", height=1, width=20, command=editor.highlight)
edge = Tkinter.Button(root, text="Edge-F", height=1, width=20, command=editor.edge)
您也可以考虑将所有界面创建内容移动到的EditorUI类中，除非您有其他理由将其保持独立。