diff --git a/diy.py b/diy.py
new file mode 100644
index 0000000..18c4046
--- /dev/null
+++ b/diy.py
@@ -0,0 +1,3 @@
+# 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\23636\Desktop\zixing.txt','a',encoding='utf-8') as zixing:
+    zixing.write('小李:10本\n')
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