Dip some color and print it, and you can see the prettyprinting on paper.
我有一双小胖手，你有树叶和橡皮，蘸点颜色印纸上，彩色印纹真美丽。
2
In practice, though, most vocabularies that use mixed content are not so sensitive to white space normalization, so don't worry too much about pretty-printing.
但在实践中，使用混合内容的多数词汇表对空白规范化没有这么敏感，因此不用过于担心精细打印。
3
Many XML serializer tools understand this distinction between relatively safe and relatively unsafe pretty-printing.