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\21901\Desktop\test.txt",'r',encoding='utf-8') as file1:
+    for i in file1:
+        if '小丽：11本' in i:
+            i=i.replace('小丽：11本','小丽：16本')
+        new_data+=i
+print(new_data)
+with open(r"C:\Users\21901\Desktop\test.txt",'w',encoding='utf-8') as file1:
+    file1.write(new_data)
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