save project

diy.py

+# 写入同学们的捐赠明细：'小兰：12本'、'小丽：11本'、'李文：9本'、'张伟：16本'
+file=open(r"C:\Users\Windows\Desktop\一键清理系统.txt","w",encoding="utf-8")
+file.write("小兰，12本\n")
+file.write("小丽，11本\n")
+file.write("李文，9本\n")
+file.write("张伟，16本\n")
+file.close()
+
+with open(r"C:\Users\Windows\Desktop\一键清理系统.txt","a",encoding="utf-8") as file:
+    file.write("小强，12本\n")
+    file.write("李明，15本\n")
+
+new_data=""
+with open(r"C:\Users\Windows\Desktop\一键清理系统.txt","r",encoding="utf-8") as file1:
+    for data in file1:
+        if "小强，12本" in data:
+            data.replace("小强：12本\n","小强：11本\n")
+        if "小兰，12本" in data:
+            data.replace("小兰：12本","小兰：14本")
+        new_data+=data
+with open(r"C:\Users\Windows\Desktop\一键清理系统.txt","w",encoding="utf-8")as file:
+    file.write(new_data)