adapter-go

以银行取款/存款为例

工商银行（ICBC）与建设银行（CBC）

通用接口： Deposit(m int) Withdraw(m int)

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Code:interface

type Bank interface { Deposit(m int) Withdraw(m int) }

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CBC接口: CBC Bank

type CBCBank struct { Money int }

func (c CBCBank) CBCDeposit(m int) { fmt.Println("CBCBank Deposit %v $", m) }

func (c CBCBank) CBCWithdraw(m int) { fmt.Println("CBCBank Withdraw %v $", m) }

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CBC适配器: CBC Bank Adapter

type CBCBankAdapter struct { MyBank CBCBank }

func (a CBCBankAdapter) Deposit(m int) { a.MyBank.CBCDeposit(m) } func (a CBCBankAdapter) Withdraw(m int) { a.MyBank.CBCWithdraw(m) }

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ICBC接口: ICBC Bank

type ICBCBank struct { Money int }

func (i ICBCBank) ICBCDeposit(m int) { fmt.Println("ICBCBank Deposit %v $", m) }

func (i ICBCBank) ICBCWithdraw(m int) { fmt.Println("ICBCBank Withdraw %v $", m) }

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ICBC适配器: ICBC Bank Adapter

type ICBCBankAdapter struct { MyBank ICBCBank }

func (a ICBCBankAdapter) Deposit(m int) { a.MyBank.ICBCDeposit(m) } func (a ICBCBankAdapter) Withdraw(m int) { a.MyBank.ICBCWithdraw(m) }

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测试代码：

cbc := bank.CBCBank{Money: 100} // 初始化CBC 100
cbcAdapter := bank.CBCBankAdapter{MyBank: cbc}

myDeposit(cbcAdapter, 10) // 存款
myWithdraw(cbcAdapter, 20) // 取款

icbc := bank.ICBCBank{Money: 200} // 初始化ICBC 100
icbcAdapter := bank.ICBCBankAdapter{MyBank: icbc}

myDeposit(icbcAdapter, 20)  // 存款
myWithdraw(icbcAdapter, 50) // 取款