save project

diy.py

@@ -9,4 +9,13 @@
 # with open(r'C:\Users\Lenovo\Desktop\book.txt',"a",encoding="utf-8") as file:
 # with open(r'C:\Users\Lenovo\Desktop\book.txt',"a",encoding="utf-8") as file:
 #     file.write('小兰：12本、小丽：11本、李文：9本、张伟：16本')
 #     file.write('小兰：12本、小丽：11本、李文：9本、张伟：16本')
 with open(r'C:\Users\Lenovo\Desktop\book.txt',"r",encoding="utf-8") as file:
 with open(r'C:\Users\Lenovo\Desktop\book.txt',"r",encoding="utf-8") as file:
-    file.write('小兰：12本、小丽：11本、李文：9本、张伟：16本')
+    for i in file.read():
\ No newline at end of file
+        print(i)
+        if "小强:10本" in i:
+            print('在')
+        else:
+            print('不在')
+        # if "小兰：12本" in i:
+        #     print('在')
+        # else:
+        #     print('不在')