save project

diy.py

@@ -8,7 +8,14 @@
 
 
 #file1=open(r'C:\Users\Administrator\Desktop\test.txt','a',encoding='utf-8')
 #file1=open(r'C:\Users\Administrator\Desktop\test.txt','a',encoding='utf-8')
 #file1.write('小明:15本\n')
 #file1.write('小明:15本\n')
-#file1.close()
+#1file1.close()
+
+with open(r'C:\Users\Administrator\Desktop\test.txt','r',encoding='utf-8')as file1:
+    for data in file1:
+        if'小兰:12本'in data:
+            print('数据在文件中')
+           
+
+
+
 
 
-with open(r'C:\Users\Administrator\Desktop\test.txt','a',encoding='utf-8')as file1:
-    file1.write('SB:10000本')