diff --git "a/data/2.MySQL\344\270\255\351\230\266/4.\350\201\232\345\220\210\345\222\214\345\210\206\347\273\204/1. \350\256\241\346\225\260/config.json" "b/data/2.MySQL\344\270\255\351\230\266/4.\350\201\232\345\220\210\345\222\214\345\210\206\347\273\204/1. \350\256\241\346\225\260/config.json"
index dd301d897a9302a38adad407f86ce0b4c371d2ca..28802501f827d679aa04b0884507b7b7ffa791b9 100644
--- "a/data/2.MySQL\344\270\255\351\230\266/4.\350\201\232\345\220\210\345\222\214\345\210\206\347\273\204/1. \350\256\241\346\225\260/config.json"	
+++ "b/data/2.MySQL\344\270\255\351\230\266/4.\350\201\232\345\220\210\345\222\214\345\210\206\347\273\204/1. \350\256\241\346\225\260/config.json"	
@@ -1,6 +1,9 @@
 {
   "node_id": "mysql-ac3c072bc54749bdb82324f2b203890d",
-  "keywords": ["count", "计数"],
+  "keywords": [
+    "count",
+    "计数"
+  ],
   "children": [],
   "export": [
     "count.json"
diff --git "a/data/2.MySQL\344\270\255\351\230\266/4.\350\201\232\345\220\210\345\222\214\345\210\206\347\273\204/1. \350\256\241\346\225\260/count.md" "b/data/2.MySQL\344\270\255\351\230\266/4.\350\201\232\345\220\210\345\222\214\345\210\206\347\273\204/1. \350\256\241\346\225\260/count.md"
index e9422681d2351e63d2e9e6ce7f767bc2c4363910..a0585151a1d3a929cced6797d30c5294b32ff279 100644
--- "a/data/2.MySQL\344\270\255\351\230\266/4.\350\201\232\345\220\210\345\222\214\345\210\206\347\273\204/1. \350\256\241\346\225\260/count.md"	
+++ "b/data/2.MySQL\344\270\255\351\230\266/4.\350\201\232\345\220\210\345\222\214\345\210\206\347\273\204/1. \350\256\241\346\225\260/count.md"	
@@ -33,7 +33,12 @@ from items;
 ## 答案
 
 ```
-3, 4
++----------+-------------+
+| count(*) | count(item) |
++----------+-------------+
+|        4 |           3 |
++----------+-------------+
+1 row in set (0.00 sec)
 ```
 
 ## 选项
@@ -41,29 +46,54 @@ from items;
 ### A
 
 ```
-4, NULL
++----------+-------------+
+| count(*) | count(item) |
++----------+-------------+
+|        4 |        NULL |
++----------+-------------+
+1 row in set (0.00 sec)
 ```
 
 ### B
 
 ```
-3, 3
++----------+-------------+
+| count(*) | count(item) |
++----------+-------------+
+|        3 |           3 |
++----------+-------------+
+1 row in set (0.00 sec)
 ```
 
 ### C
 
 ```
-1, 0
++----------+-------------+
+| count(*) | count(item) |
++----------+-------------+
+|        4 |           4 |
++----------+-------------+
+1 row in set (0.00 sec)
 ```
 
 ### D
 
 ```
-NULL,  NULL
++----------+-------------+
+| count(*) | count(item) |
++----------+-------------+
+|     NULL |        NULL |
++----------+-------------+
+1 row in set (0.00 sec)
 ```
 
 ### E
 
 ```
-4, 4
++----------+-------------+
+| count(*) | count(item) |
++----------+-------------+
+|        4 |           0 |
++----------+-------------+
+1 row in set (0.00 sec)
 ```
\ No newline at end of file