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ruanyf merged 1 commit into from
May 22, 2020
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!应放在逻辑运算 #28

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2 changes: 1 addition & 1 deletion docs/arithmetic.md
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Expand Up @@ -185,7 +185,6 @@ $ echo $((2#11111111))
- `&`：位的“与”运算，对两个数字的所有位执行一个`AND`操作。
- `|`：位的“或”运算，对两个数字的所有位执行一个`OR`操作。
- `~`：位的“否”运算，对一个数字的所有位取反。
- `!`：逻辑“否”运算
- `^`：位的异或运算（exclusive or），对两个数字的所有位执行一个异或操作。

下面是右移运算符`>>`的例子。
Expand Down Expand Up @@ -225,6 +224,7 @@ $ echo $((17^3))
- `!=`：不相等
- `&&`：逻辑与
- `||`：逻辑或
- `!`：逻辑否
- `expr1?expr2:expr3`：三元条件运算符。若表达式`expr1`的计算结果为非零值（算术真），则执行表达式`expr2`，否则执行表达式`expr3`。

如果逻辑表达式为真，返回`1`，否则返回`0`。
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