# Functions
Base32Decode base32解码.
Base32Encode base32编码.
CreateFile 创建文件.
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Flock 文件加锁.
GetAbsDir 得到程序运行的绝对路径.
GetClientIP 得到客户端IP.
GetDateFromNow 在当前的时间的基础上得到添加天数后的当前开始时间和结束时间.
GetInvCodeByUIDUniqueNew 获取指定长度的邀请码。.
GetRandomString 生成随机符串.
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IP2City ip转城市.
IP2Country ip转国家.
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IsDir 是否是文件夹.
IsStrInArr 字符串是否在数组中.
LeftLower 首字母小写.
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LockFile 文件加锁.
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MicrosecondsStr 将 time.Duration 类型(nano seconds 为单位) 输出为小数点后 3 位的 ms (microsecond 毫秒,千分之一秒).
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NewUUID creates a UUID with random value.
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ParseBytes converts a UUID in byte form to object.
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ParseString converts a UUID in string form to object.
RandNumber 随便数字.
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RuntimeDir 运行时目录.
ShadowEmail 隐藏邮箱地址信息.
ShadowMobile 隐藏中间四位手机号.
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UniqueID 全局唯一ID.
UniqueIDStr id.
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Write 写文件.