Create Software Design Pattern.md

Author: CompetitiveLin

Software Design Pattern.md

@@ -0,0 +1,51 @@
+# 设计模式
+
+1. 责任链模式
+
+```go
+package main
+
+import "fmt"
+
+type person struct {
+}
+
+type chain interface {
+	check(person)
+	setNext(chain)
+}
+
+type check1 struct {
+	next chain
+}
+
+func (c check1) check(p person) {
+	fmt.Println("check1")
+	c.next.check(p)
+}
+
+func (c check1) setNext(ch chain) {
+	c.next = ch
+}
+
+type check2 struct {
+	next chain
+}
+
+func (c check2) check(p person) {
+	fmt.Println("check2")
+}
+
+func (c check2) setNext(ch chain) {
+	c.next = ch
+}
+
+func main() {
+	p := person{}
+
+	c1 := &check1{next: check2{}}
+	c1.check(p)
+}
+
+```
+