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'
+
+
+
+
+with open(r"C:\Users\双师04\Desktop\123.txt","r",encoding='utf-8') as file:
+    a=file.readlines()
+    new_data=""
+    for data in a:
+        print(data)
+        if "小兰：12本" in data:
+            print("数据在")
+            data=data.replace("小兰：12本","小兰：10本")
+        new_data=new_data+data 
+    print(new_data) 
+
+with open(r"C:\Users\双师04\Desktop\123.txt","r",encoding='utf-8') as file:
+    file.write(new_data)          
\ No newline at end of file