撇號和引號
屬性值可以用簡單或雙引號顯示。必須轉義相應的字元。
placeholderCopy<?xml version="1.0"?>
<document
quot-attribute="This is a "double quote" and this one is 'simple'"
apos-attribute='This is a 'simple quote' and this one is "double"'>
</document>