chore: update readme

Author: afumu

README.md

@@ -89,12 +89,31 @@ var UserColumn = struct {
 
 
 
+## 基础操作：
 
+users 表
+
+~~~sql
+DROP TABLE IF EXISTS `users`;
+CREATE TABLE `users`  (
+                          `id` int(0) NOT NULL AUTO_INCREMENT,
+                          `username` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL,
+                          `password` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL,
+                          `age` int(0) NULL DEFAULT NULL,
+                          `phone` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL,
+                          `score` int(0) NULL DEFAULT NULL,
+                          `address` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL,
+                          `dept` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL,
+                          `created_at` datetime(0) NULL DEFAULT NULL,
+                          `updated_at` datetime(0) NULL DEFAULT NULL,
+                          PRIMARY KEY (`id`) USING BTREE
+) ENGINE = InnoDB CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci ROW_FORMAT = Dynamic;
+
+SET FOREIGN_KEY_CHECKS = 1;
+~~~
 
 
 
-## 基础操作：
-
 ### 初始化
 
 ```go