我也试过这个起初heinzderaugust建议的方式:
button[i] = ttk.Button(loadProject, text=data_files[i], command = lambda i=data_files[i]:load(i)).grid(column=1, row=i, sticky=W)
我也可以用类作为回调的中间部分,以解决这个问题: (这个课程是插件里面viewProject)erted
class Command:
def __init__(self, callback, *args, **kwargs):
self.callback = callback
self.args = args
self.kwargs = kwargs
def __call__(self):
return(self.callback(*self.args, **self.kwargs))
然后我您的按钮定义改为:
button[i] = ttk.Button(loadProject, text=data_files[i], command = Command(load,data_files[i])).grid(column=1, row=i, sticky=W)
最后我改变了负载函数接受一个说法:
def load(myFile):
spamReader = csv.reader(open(myFile))
for row in spamReader:
a = list(row)
ttk.Label(loadProject, text=(a[0])).grid(column=4, row=0, sticky=W)
ttk.Label(loadProject, text=("\n"+a[1])).grid(column=4, row=1, sticky=W)
ttk.Label(loadProject, text=("\n"+a[2])).grid(column=4, row=2, sticky=W)
ttk.Label(loadProject, text=(a[3])).grid(column=4, row=3, sticky=W)
ttk.Label(loadProject, text=(a[4])).grid(column=4, row=4, sticky=W)
ttk.Label(loadProject, text=("\n"+a[5])).grid(column=4, row=5, sticky=W)
ttk.Label(loadProject, text=("\n"+a[6])).grid(column=4, row=6, sticky=W)
ttk.Label(loadProject, text=("\n\n"+a[7])).grid(column=4, row=7, sticky=W)
我不确定这会是最好的做法,但都行。
(当然,拉姆达的做法确实有点显得更“Python化”)
来源:https://code.activestate.com/recipes/66521-avoiding-lambda-in-writing-callback-functions/
谢谢,我知道了现在的工作。我去了第二个,因为它对我来说似乎更容易理解。 – Launch 2012-03-18 21:33:47