VBScript SgnFunction

VBScript 参考手册Complete VBScript Reference Manual

The Sgn function returns an integer that indicates the sign of the specified number.

Syntax

Sgn(number)

Parameters Description
number Required. A valid numeric expression.

If the number is:

  • >0 - Sgn returns 1
  • =0 - Sgn returns 0
  • <0 - Sgn returns -1

Example

Example

<script type="text/vbscript">

document.write(Sgn(15) & "<br />")
document.write(Sgn(-5.67) & "<br />")
document.write(Sgn(0))

</script>

The output result of the above example:

1
-1
0

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