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\新建文本文档.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\新建文本文档.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\新建文本文档.txt","r",encoding="utf-8") as file:
+    for data in file:
+        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\n","小兰：14本\n") 
+        new_data += data 
+with open(r"C:\Users\Windows\Desktop\新建文本文档.txt","w",encoding="utf-8") as file:
+    file.write(new_data)   
+    print(new_data)
+
+        
+            
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