save project

diy.py

+# 写入同学们的捐赠明细：'小兰：12本' op、'小丽：11本'、'李'文：9本'、'张伟：16本"
+with open(r"C:\Users\Administrator\Desktop\book.txt","r",encoding="utf-8") as file:
+    #file.write("小兰：12本")
+    new1=""
+    for i in file:
+        print(i)
+        if "小兰：12本" in i:
+            print("在里面呢~")
+            i=i.replace("小兰：12本","小兰：14本")
+            print(i)
+        new1+=i
+with open(r"C:\Users\Administrator\Desktop\book.txt","w",encoding="utf-8") as file:
+    file.write(new1)
+
+        
+