Decr (key [, value]) - Decrements the specified key by one or the specified value. Only works on numerical values.

decr (key [，value])—为特定的键减1或特定的值，只适用于数值。

youdao

Decr (key [, value]) - Decrements the specified key by one or the specified value. Only works on numerical values.

decr (key [，value])—为特定的键减1或特定的值，只适用于数值。

youdao