diff --git "a/\347\254\254\344\270\211\345\221\250/GO5094-\344\270\212\346\265\267-\346\227\245\346\210\220/main_test.go" "b/\347\254\254\344\270\211\345\221\250/GO5094-\344\270\212\346\265\267-\346\227\245\346\210\220/main_test.go"
new file mode 100644
index 0000000000000000000000000000000000000000..17fc285bbb66c9b044954eeef89e020f7295e1c9
--- /dev/null
+++ "b/\347\254\254\344\270\211\345\221\250/GO5094-\344\270\212\346\265\267-\346\227\245\346\210\220/main_test.go"
@@ -0,0 +1,103 @@
+package main
+
+import (
+	"fmt"
+	"testing"
+	"unsafe"
+)
+
+type Book struct {
+	Title  string
+	Author string
+	Page   uint
+	Tag    []string
+}
+
+func TestMain1(t *testing.T) {
+
+	b := Book{
+		Tag: []string{"abc", "def", "hjk"},
+	}
+	// p := uintptr(unsafe.Pointer(&b.Tag[0]))
+	fmt.Println(*(*string)(unsafe.Pointer(uintptr(unsafe.Pointer(&b.Tag[0])))))
+	fmt.Println(*(*string)(unsafe.Pointer(uintptr(unsafe.Pointer(&b.Tag[1])))))
+	fmt.Println(*(*string)(unsafe.Pointer(uintptr(unsafe.Pointer(&b.Tag[2])))))
+}
+
+func TestMain2(t *testing.T) {
+
+	scores := [][]int{
+		{88, 88, 90},
+		{66, 99, 94},
+		{75, 84, 98},
+		{93, 77, 66},
+	}
+	for _, v := range scores {
+		sum := 0
+		for i, j := range v {
+			sum += j
+			if i == len(v)-1 {
+				fmt.Printf("%4.2f\n", float64(sum)/float64(len(v)))
+			}
+		}
+	}
+}
+
+func TestMain3(t *testing.T) {
+	c := Class{
+		Name:   "一班",
+		Number: "1",
+		Students: []Student{
+			Student{
+				Name:     "张三",
+				Number:   "00001",
+				Subjects: []string{"数学", "语文", "英语", "化学"},
+				Scores:   []float64{78, 90, 89, 90},
+			},
+			Student{
+				Name:     "李四",
+				Number:   "00002",
+				Subjects: []string{"数学", "语文", "英语", "化学"},
+				Scores:   []float64{22, 90, 89, 90},
+			},
+			Student{
+				Name:     "王五",
+				Number:   "00003",
+				Subjects: []string{"数学", "语文", "英语", "化学"},
+				Scores:   []float64{18, 90, 89, 98},
+			},
+		},
+	}
+	m := c.TotalScore()
+	fmt.Printf("数学平均分为%4.2f\n", m["数学"])
+	fmt.Printf("语文平均分为%4.2f\n", m["语文"])
+	fmt.Printf("英语平均分为%4.2f\n", m["英语"])
+	fmt.Printf("化学平均分为%4.2f\n", m["化学"])
+}
+
+type Student struct {
+	Name     string
+	Number   string
+	Subjects []string
+	Scores   []float64
+}
+
+type Class struct {
+	Name     string
+	Number   string
+	Students []Student
+}
+
+func (c Class) TotalScore() (m map[string]float64) {
+	student_number := len(c.Students)
+	m = make(map[string]float64)
+	for i := 0; i < student_number; i++ {
+		for k, v := range c.Students[i].Subjects {
+			m[v] += c.Students[i].Scores[k]
+		}
+	}
+	for _, v := range c.Students[0].Subjects {
+		m[v] = m[v] / float64(student_number)
+	}
+	return
+}