* 转换数字单位 | 传入参 | 参数标识 | | 说明 | | --- | --- | --- |--- | | data | 0 | 必填 | 数字 | | 回调参 | 说明 | | --- | --- | | \[ string \] | 转换后的单位值 | * 案例 ~~~ $obj = $T_C->number('4321'); $obj = $T_C->number('54321'); $obj = $T_C->number('7654321'); $obj = $T_C->number('987654321'); ~~~ > 4321 > 5.43W > 7.65M > 9.87B