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num_expand() function

单位扩大固定倍数

Signature:

num_expand: (amount: number | string | undefined | null, unit?: number, accuracy?: number) => string | number | null | undefined

Parameters

Parameter	Type	Description
amount	number | string | undefined | null	当前金额
unit	number	(Optional) 转换单位，默认100
accuracy	number	(Optional) 保留几位小数，默认2位

**Returns:**

string | number | null | undefined