kk-vv / Base64

Swift Base64,方便修改字符集

Base64Utils

let string = "Hello,你好,a123"

• 系统方法

let data = string.data(using: .utf8, allowLossyConversion: true)
let base64String = data?.base64EncodedString(options: Data.Base64EncodingOptions.init(rawValue: 0))
//编码输出:SGVsbG8s5L2g5aW9LGExMjM=

let data2 = Data(base64Encoded: base64String!, options: Data.Base64DecodingOptions.init(rawValue: 0))
let decodeString = String.init(data: data2!, encoding: .utf8)
//解码输出:Hello,你好,a123

• Base64默认字符集(共64个字符)

ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/

• 修改字符集(共64个字符)

  不要包含 = , 不要重复

var ZX_BASE64_KEYS = "!@#ef456$%^&*hijkl()]ßmnop∂ƒ©˙∫∆abcd3789gqrstu[}{><œ∑åvwxyz012+/"

let encodeText = string.zx_base64Encode() 
//编码输出:(5ßtƒ51ty&vay∂m2&5f>*d*=
let decodeText = encodeText.zx_base64Decode()
//解码输出:Hello,你好,a123