XMAL 字符实体
| 特殊字符 | 字符实体 |
| < | < |
| > | > |
| & | & |
| " | " |
<Button>
<Click Me>
</Button>
保留字符串的首尾空格
<TextBox xml:space="preserve" Foreground="White">
There is a l quotation marks "
</TextBox>
标签：字符,gt,实体,空白,lt,特殊字符 From： https://www.cnblogs.com/friend/p/17022575.html