Add build script for Go and update Go codes.

docs/chapter_hashing/hash_map.md

@@ -440,52 +440,9 @@ $$
 === "Go"
 
     ```go title="array_hash_map.go"
-    /* 键值对 int->String */
-    type entry struct {
-        key int
-        val string
-    }
-    
-    /* 基于数组简易实现的哈希表 */
-    type arrayHashMap struct {
-        bucket []*entry
-    }
-    
-    func newArrayHashMap() *arrayHashMap {
-        // 初始化一个长度为 100 的桶（数组）
-        bucket := make([]*entry, 100)
-        return &arrayHashMap{bucket: bucket}
-    }
-    
-    /* 哈希函数 */
-    func (a *arrayHashMap) hashFunc(key int) int {
-        index := key % 100
-        return index
-    }
-    
-    /* 查询操作 */
-    func (a *arrayHashMap) get(key int) string {
-        index := a.hashFunc(key)
-        pair := a.bucket[index]
-        if pair == nil {
-            return "Not Found"
-        }
-        return pair.val
-    }
-    
-    /* 添加操作 */
-    func (a *arrayHashMap) put(key int, val string) {
-        pair := &entry{key: key, val: val}
-        index := a.hashFunc(key)
-        a.bucket[index] = pair
-    }
-    
-    /* 删除操作 */
-    func (a *arrayHashMap) remove(key int) {
-        index := a.hashFunc(key)
-        // 置为 nil ，代表删除
-        a.bucket[index] = nil
-    }
+    [class]{entry}-[func]{}
+
+    [class]{arrayHashMap}-[func]{}
     ```
 
 === "JavaScript"