fix bug

data/1.gml初阶/2.MarkDown入门/8.代码块/learn.md

@@ -21,17 +21,17 @@
 ### B
 
 ````bash
-```hack_diff
+```diff
 var foo = 'bar';
 + var x = 200;
 * var x = 100;
-```hack_
+```
 ````
 
 ### C
 
 ````bash
-```hack_python
+```python
 def fibo(max):
     n, a, b = 0, 0, 1
     while n < max:
@@ -40,5 +40,5 @@ def fibo(max):
         n = n + 1  
 for n in fibo(10):
     print (n)
-```hack_
+```
 ````