save project

123.py

+new_data=""
+with open(r'C:\Users\ACER\Desktop\test.txt','r',encoding='utf-8') as file1:
+    for a in file1:
+        if "小兰,12本\n" in data: 
+            data=data.replace("小兰,12本n","小兰,12本")
+            print("有人~~")
+        new_data+=data
+with open(r'C:\Users\ACER\Desktop\test.txt','w',encoding='utf-8') as file1:
+    file1.write(new_data)
+print(new_data)
\ No newline at end of file

diy.py

+file1=open(r'C:\Users\ACER\Desktop\test.txt','w',encoding='utf-8')
+file1.write('小兰,12本')
+
+file1.close()# 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'