A valid JSON document is either an array or an object, so a document always starts with a square or curly bracket.
有效的JSON文本是一个数组或对象，因此JSON文本总是以方括号或大括号开始。
In the style section of an HTML document, type the name of the class, a space, and an opening curly bracket to begin the definition.
在HTML文档的样式部分中，输入类名、一个空格和一个前花括号，开始定义。
Parenthesis Matching: % Takes you to the matching parenthesis, curly brace, or bracket, depending on what you are on. This always comes in handy as a quick double-check.
括号匹配：%可以让光标从它当前所在的括号跳转到与它相匹配的括号上去，对花括号和圆括号，方括号都有效，常用于手工检查括号是否匹对。
Parenthesis Matching: % Takes you to the matching parenthesis, curly brace, or bracket, depending on what you are on. This always comes in handy as a quick double-check.
括号匹配：%可以让光标从它当前所在的括号跳转到与它相匹配的括号上去，对花括号和圆括号，方括号都有效，常用于手工检查括号是否匹对。
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