A compound statement that uses curly braces to mark a block of code, such as a conditional test or loop, does not need a semicolon after a closing brace.

• 它是这个语言最低级的语法，指定变量名外表特征如何、使用什么字符来注释、如何把每个程序指令分隔开等等诸如此类的事情。