save project

diy2.py

-with open("C:\\Users\\ASUS\\Desktop\\a.txt",'r',encoding='UTF-8')as a:
+a_b=''
+with open("C:\\Users\\ASUS\\Desktop\\a.txt",'r',encoding='UTF-8') as a:
     for bata in a:
     for bata in a:
         if '小强:10本' in bata:
         if '小强:10本' in bata:
             print('在')
             print('在')
+            bata=bata.replace('小强:10','小强:11')
         else:
         else:
             print('不在')
             print('不在')
+        if '小兰:12本' in bata:
+            print('在')
+            bata=bata.replace('小兰:12','小兰:14')
+        else:
+            print('不在')
+        a_b+=bata
+
+with open("C:\\Users\\ASUS\\Desktop\\a.txt",'w',encoding='UTF-8') as a:
+    a.write(a_b)
+with open("C:\\Users\\ASUS\\Desktop\\a.txt",'r',encoding='UTF-8') as a:
+    s=a.read()
+    print(s)
\ No newline at end of file