Update

stage06-oop/02-methods/main.go

@@ -0,0 +1,163 @@
+package main
+
+import "fmt"
+
+type Person struct {
+	Name  string
+	Age   int
+	Email string
+}
+
+func (p Person) GetName() string {
+	return ____
+}
+
+func (p Person) GetAge() int {
+	return ____
+}
+
+func (p *Person) SetName(name string) {
+	____ = ____
+}
+
+func (p *Person) SetEmail(email string) {
+	____ = ____
+}
+
+func (p Person) GetInfo() string {
+	return fmt.Sprintf("%s, %d岁, %s", ____, ____, ____)
+}
+
+type Rectangle struct {
+	Width  float64
+	Height float64
+}
+
+func (r Rectangle) Area() float64 {
+	return ____
+}
+
+func (r *Rectangle) Resize(width, height float64) {
+	____ = ____
+	____ = ____
+}
+
+type BankAccount struct {
+	Balance float64
+	Owner   string
+}
+
+func (b *BankAccount) Deposit(amount float64) {
+	b.Balance += ____
+}
+
+func (b *BankAccount) Withdraw(amount float64) bool {
+	if b.Balance >= amount {
+		b.Balance -= ____
+		return ____
+	}
+	return false
+}
+
+func (b BankAccount) GetBalance() float64 {
+	return ____
+}
+
+func exercise1() string {
+	fmt.Println("=== 练习1：基础方法 ===")
+
+	person := Person{Name: "张三", Age: 25, Email: "zhangsan@example.com"}
+
+	name := ____
+	age := ____
+
+	person.SetName(____)
+	person.SetEmail(____)
+
+	fmt.Printf("姓名: %s, 年龄: %d\n", ____, person.Age)
+
+	return ____
+}
+
+func exercise2() float64 {
+	fmt.Println("=== 练习2：矩形方法 ===")
+
+	rect := Rectangle{Width: 10, Height: 5}
+
+	area := ____
+
+	fmt.Printf("矩形面积: %.2f\n", area)
+
+	rect.Resize(____, ____)
+
+	newArea := ____
+	fmt.Printf("调整后面积: %.2f\n", ____)
+
+	return ____
+}
+
+func exercise3() float64 {
+	fmt.Println("=== 练习3：银行账户方法 ===")
+
+	account := BankAccount{Balance: 1000, Owner: "张三"}
+
+	account.____(500)
+	fmt.Printf("存款后余额: %.2f\n", account.____())
+
+	success := account.____(300)
+	if success {
+		fmt.Printf("取款成功，余额: %.2f\n", account.____())
+	}
+
+	return ____
+}
+
+func exercise4() string {
+	fmt.Println("=== 练习4：方法链 ===")
+
+	// 使用方法链调用
+	person := Person{Name: "李四", Age: 30, Email: "lisi@example.com"}
+
+	person.SetName("李四（更新）").SetEmail("lisi_new@example.com")
+
+	return ____
+}
+
+func exercise5() int {
+	fmt.Println("=== 练习5：计算器方法 ===")
+
+	type Calculator struct {
+		value int
+	}
+
+	calc := Calculator{value: 0}
+
+	calc.setValue := func(v int) {
+		calc.value = v
+	}
+
+	calc.setValue(10)
+
+	fmt.Printf("计算器值: %d\n", calc.value)
+
+	return ____
+}
+
+func main() {
+	fmt.Println("=== 方法 练习 ===\n")
+
+	result1 := exercise1()
+	fmt.Printf("练习1结果: %s\n", result1)
+
+	result2 := exercise2()
+	fmt.Printf("练习2结果: %.2f\n", result2)
+
+	result3 := exercise3()
+	fmt.Printf("练习3结果: %.2f\n", result3)
+
+	result4 := exercise4()
+	fmt.Printf("练习4结果: %s\n", result4)
+
+	result5 := exercise5()
+	fmt.Printf("练习5结果: %d\n", result5)
+}