save project

1.py

+with open(r"C:\应\test.txt","w",encoding="utf-8")as file1:
+    file1.write("丽:10本\n")
+
+
+with open(r"C:\应\test.txt","r",encoding="utf-8")as file1
+    for data in file1:
+        if "丽:10本\n"in data:
+            print("数据中")
\ No newline at end of file

2.py

+with open(r"C:\应乔安\test,txt","w",encoding="utf-8")as file1:
+    file1.write("小丽:11本\n")
+
+new_data=""
+
+with open(r"C:\应乔安\test,txt","r",encoding="utf-8")as file1:
+
+    for data in file1:
+        if "小丽:11本" in data
+            data=data.replace("小丽:11本","小丽:12本")
+        new_data +=data
+
+with open(r"C:\应乔安\test,txt","w",encoding="utf-8")as file1:
+    file1.write(new_data)
+with open(r"C:\应乔安\test,txt","r",encoding="utf-8")as file1:
+    a=file1.read()
+    print(a)
\ No newline at end of file