won't = will not 它用于将来时。
don't = do not 它用于一般现在时。
I won't go shopping tomorrow.
I don't go shopping today.
区别
区别是指两个或两个以上的事物间的不同,一般是在存在共同点的情况下说有"区别",世间万物,不可能任何东西都是一样的,世上没有两片一样的叶子。当两种相似的事物作比较时,它们的不同点便是区别。
won't = will not 它用于将来时
don't = do not 它用于一般现在时
I won't go shopping tomorrow.
I don't go shopping today.