2.5 运算符 Operators

The following tokens are operators:

以下符号是运算符:

+       -       *       **      /       //      %
<<      >>      &       |       ^       ~
<       >       <=      >=      ==      !=      <>

The comparison operators <> and != are alternate spellings of the same operator. != is the preferred spelling; <> is obsolescent.

比较运算符<>和!=是可选的两个具有相同含义的符号. 但推荐使用!=, <>是过时的写法.