在创建标签时，尝试将width=200作为附加参数传递.

Try passing width=200 as additional paramater when creating the Label.

这应该可以创建具有指定宽度的标签.

This should work in creating label with specified width.

如果您以后想要更改，可以使用:

If you want to change it later, you can use:

label.config(width=200)

要更改字体本身的大小，可以尝试:

As you want to change the size of font itself you can try:

label.config(font=("Courier", 44))