Fixed some problems, indentation and Pointer

codes/go/chapter_hashing/hash_map_test.go

@@ -10,48 +10,48 @@ import (
 )
 
 func TestHashmap(t *testing.T) {
-	// 初始化哈希表
-	Map := make(map[int]string)
+	/* 初始化哈希表 */
+	mapp := make(map[int]string)
 
-	// 添加操作
+	/* 添加操作 */
 	// 在哈希表中添加键值对 (key, value)
-	Map[12836] = "小哈"
-	Map[15937] = "小啰"
-	Map[16750] = "小算"
-	Map[13276] = "小法"
-	Map[10583] = "小鸭"
+	mapp[12836] = "小哈"
+	mapp[15937] = "小啰"
+	mapp[16750] = "小算"
+	mapp[13276] = "小法"
+	mapp[10583] = "小鸭"
 	fmt.Println("\n添加完成后，哈希表为\nKey -> Value")
-	for key, value := range Map {
+	for key, value := range mapp {
 		fmt.Printf("%d -> %s\n", key, value)
 	}
 
-	// 查询操作
+	/* 查询操作 */
 	// 向哈希表输入键 key ，得到值 value
-	name := Map[15937]
+	name := mapp[15937]
 	fmt.Println("\n输入学号 15937 ，查询到姓名 ", name)
 
-	// 删除操作
+	/* 删除操作 */
 	// 在哈希表中删除键值对 (key, value)
-	delete(Map, 10583)
+	delete(mapp, 10583)
 	fmt.Println("\n删除 10583 后，哈希表为\nKey -> Value")
-	for key, value := range Map {
+	for key, value := range mapp {
 		fmt.Printf("%d -> %s\n", key, value)
 	}
 
 	/* 遍历哈希表 */
 	// 遍历键值对 key->value
 	fmt.Println("\n遍历键值对 Key->Value")
-	for key, value := range Map {
+	for key, value := range mapp {
 		fmt.Println(key, "->", value)
 	}
 	// 单独遍历键 key
 	fmt.Println("\n单独遍历键 Key")
-	for key := range Map {
+	for key := range mapp {
 		fmt.Println(key)
 	}
 	// 单独遍历值 value
 	fmt.Println("\n单独遍历值 Value")
-	for _, value := range Map {
+	for _, value := range mapp {
 		fmt.Println(value)
 	}
 }