save project

diy.py

-file1=open(r'C:\Users\Administrator\Desktop\text.txt','w',encoding='utf-8')
-file1.write("小兰：12本")
-file1.write("小丽：11本")
-file1.write("李文：9本")
-file1.write("张伟：16本")
-file1.close()
+#file1=open(r'C:\Users\Administrator\Desktop\text.txt','w',encoding='utf-8')
+#file1.write("小兰：12本")
+#file1.write("小丽：11本")
+#file1.write("李文：9本")
+#file1.write("张伟：16本")
+#file1.close()
\ No newline at end of file
+with open(r'C:\Users\Administrator\Desktop\text.txt','a',encoding='utf-8')as file1:
+    file1.write("刘强：15本")
\ No newline at end of file