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'
+new_data=" "
+with open(r'‪C:\Users\book.txt','w',encoding='utf-8') as file:
+    for data in file:
+        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\book.txt','w',encoding='utf-8') as file:
+    file.write(new_data)
+with open(r'‪C:\Users\book.txt','w',encoding='utf-8') as file:
+    a=file.read()
+    print(a)    
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