Add test_radix_tree.h

APP_Framework/Applications/app_test/test_radix_tree/test_radix_tree.h

@@ -0,0 +1,20 @@
+/**
+* @file:    test_radix_tree.h
+* @brief:   Implement a simple radix tree
+* @version: 1.0
+* @date:    2023/5/24
+*/
+
+#define NODE_SIZE 128
+#define MAX_WORD_LEN 128
+
+typedef struct _node {
+    void* value;
+    struct _node* next[NODE_SIZE];
+} node;
+
+node* CreateNode();
+void InsertNode(node* root, const char* key, void* value);
+void DeleteNode(node* root, const char* key);
+void* FindNode(node* root, const char* key);
+void DestroyTree(node* root);