save project

yuiop.py

@@ -5,9 +5,13 @@
 # file1.write('小方：5本')
 # file1.write('小方：5本')
 # file1.write('小高：20本')
 # file1.write('小高：20本')
 # file1.close()
 # file1.close()
-with open(r'C:\users\CM\Desktop\test.txt','r',encoding='utf-8')as
-file:
-    a=file.read('小兰：12本')
+with open(r'C:\users\CM\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')
+
+    file1.write('小兰：12本')
+    a=file.read()
     print(a)
     print(a)