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'
-#file1=open(r"C:\Users\maku\Desktop\sales_list.txt","w",encoding="utf-8")
-#file1.write("小强：10本\n")
-#file1.write("小明：11本\n")
-#file1.close()
-with open(r"C:\Users\maku\Desktop\sales_list.txt","a",encoding="utf-8") as file1:
-    file1.write("asdfa")
+new_data = ""
+with open(r"C:\Users\maku\Desktop\sales_list.txt","r",encoding="utf-8") as file1:
+    for data in file1:
+        if "小强：10本" in data:
+            data=data.replace("小强：10本","小强：11本")
+        if "小兰：12本" in data:
+            data=data.replace("小兰：12本","小兰：14本")
+        new_data += data
+with open(r"C:\Users\maku\Desktop\sales_list.txt","w",encoding="utf-8") as file1:
+    file1.write(new_data)
+with  open(r"C:\Users\maku\Desktop\sales_list.txt","r",encoding="utf-8") as file1:
+    a=file1.read()
+    print(a)
 
 
 
 
 
 
-        
 
 
+
+
+
+#r"C:\Users\maku\Desktop\sales_list.txt","r",encoding="utf-8"