diff --git a/diy.py b/diy.py
new file mode 100644
index 0000000..36e0707
--- /dev/null
+++ b/diy.py
@@ -0,0 +1,48 @@
+# 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\Administrator\Desktop\text.txt','w',encoding='utf-8')
+#file1.write('小兰：12本\n')
+#file1.write('小丽：11本\n')
+#file1.write('李文：9本\n')
+#file1.write('张伟：16本\n')
+#file1.close()
+
+
+#file1=open(r'C:\Users\Administrator\Desktop\text.txt','a',encoding='utf-8')
+#file1.write('小兰：12本\n')
+#file1.close()
+
+
+
+
+#with open(r'C:\Users\Administrator\Desktop\text.txt','a',encoding='utf-8')as file:
+    #file.write('小强：10本\n')
+    #file.write('李明：15本\n')
+
+
+#with open(r'C:\Users\Administrator\Desktop\text.txt','r',encoding='utf-8')as file:
+    #a=file1.read()
+    #print(a)
+    #file.close()
+
+
+#with open(r'C:\Users\Administrator\Desktop\text.txt','r',encoding='utf-8')as file1:
+#file1:
+    #a=file1()
+ #   print(a)
+
+
+new_data=''
+with open(r'C:\Users\Administrator\Desktop\text.txt','r',encoding='utf-8')as file1:
+    for data in file1:
+        if'小红：12本'in data:
+            data=data.replace('小红：12本','小红;20')
+        if'小红：12本'in data:
+            data=data.replace('小兰：152本','小兰;207')
+        new_data +=data
+
+with open(r'C:\Users\Administrator\Desktop\text.txt','w',encoding='utf-8')as file1:
+    file1.write(new_data)
+
+with open(r'C:\Users\Administrator\Desktop\text.txt','r',encoding='utf-8')as file1:
+    a=file1.read()
+    print(a)
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