Set Key Label to a value of your choice.
将密钥标签设置为您所选的值。
Immediately above the progress bar is a (centered) Label that shows the value of the progress bar.
紧贴在进度条上的是一个(居中的)Label,它展示了进度条的值。
The convert function takes the variable containing the input string, as well as a reference to the Label widget as parameters, so that it can change the value shown by the Label.
convert以包含有输入字符串的变量以及对Label窗口小部件的引用作为参数,以改变Label所显示的值。
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