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'
 # 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\EDZ\Desktop\新建文本文档.txt","r",encoding="utf-8")
 file = open(r"C:\Users\EDZ\Desktop\新建文本文档.txt","r",encoding="utf-8")
+nw=""
 for data in file:
 for data in file:
-        print(data) 
+        if "张伟：16本"in data:
+                data=data.replace("张伟：16本","张伟：1000本")
+        nw+=data
+file.close()
+file = open(r"C:\Users\EDZ\Desktop\新建文本文档.txt","w",encoding="utf-8")
+file.write(nw)
 file.close()
 file.close()
\ No newline at end of file