MC-Basic:SGN/zh-hans

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缩写

格式

SGN(<expression>)

适用版本

所有版本

描述

此函数返回表达式的符号。

If <expression> is positive, SGN returns +1

If <expression> is zero, SGN returns 0.

If <expression> is negative, SGN returns -1

类型

Double

取值范围

± Max Double

单位

默认值

使用范围

配置器, 任务区或终端

限制

只读

例子

?SGN(Var1)

I = SGN(Var2)

参见

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