save project

a.py

+new_data=""
 with open(r"C:\Users\肖慧\Desktop\book.txt","w",encoding='utf-8')as file:
 with open(r"C:\Users\肖慧\Desktop\book.txt","w",encoding='utf-8')as file:
     file.write("小强：10本,小兰：12本")
     file.write("小强：10本,小兰：12本")
 with open(r"C:\Users\肖慧\Desktop\book.txt","r",encoding='utf-8')as file:
 with open(r"C:\Users\肖慧\Desktop\book.txt","r",encoding='utf-8')as file:
     for data in file:
     for data in file:
         if "小强：10本" in data:
         if "小强：10本" in data:
-            print("数据在文件中")
+            data=data.replace("小强：10本","小强：11本")
\ No newline at end of file
+        if "小兰：12本" in data:
+            data=data.replace("小兰：12本","小兰：14本")
+        new_data+=data
+        print(new_data)
+# with open(r"C:\Users\肖慧\Desktop\book.txt","w",encoding='utf-8') as file:
+#     # file.replace("小强：10本","小强：11本")
+#     # file.replace("小兰：12本","小兰：14本")
+#     b=file.write(new_data)
+# print(b)