save project

diy.py

@@ -5,8 +5,9 @@ file.write('小丽：11本\n')
 file.write('李文：9本\n')
 file.write('李文：9本\n')
 file.write('张伟：16本\n')
 file.write('张伟：16本\n')
 file.close()
 file.close()
-with open('C:\\Users\\Administrator\\Desktop\\text.txt','a',encoding='utf-8') as file:
-    file.write('小兰：12本\n')
-
+with open('C:\\Users\\Administrator\\Desktop\\text.txt','r',encoding='utf-8') as file:
+    for data in file:
+        if '小兰：12本' in data:
+            print("数据在文件中")
 
 
  
  
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