python模块tkinter的variable

demo
原文

1. type

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# The Variable Classes
BooleanVar
DoubleVar
IntVar
StringVar

2. usage

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val = StringVar()
label = Label(text = "text...",textvariable = val)

3. methods

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# value
value = val.get()
val.set("new text ...")
# other
# mode is one of the "w","u","r"
trace(mode, callback)
trace_variable(mode, callback)
trace_vdelete(mode, observer name)
trace_vinfo()

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文章目录
  1. 1. 1. type
  2. 2. 2. usage
  3. 3. 3. methods
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