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'
-file1=open(r"C:\Users\user\Desktop\book.txt","w",encoding="utf-8")
-file1.write("xl:12\n")
-file1.write("xl:11\n")
-file1.write("lw:9\n")
-file1.write("zw:16\n")
-file1.close()
\ No newline at end of file
+# file1=open(r"C:\Users\user\Desktop\book.txt","w",encoding="utf-8")
+# file1.write("xl:12\n")
+# file1.write("xl:11\n")
+# file1.write("lw:9\n")
+# file1.write("zw:16\n")
+# file1.close()
+with open(r"C:\Users\user\Desktop\book.txt","a",encoding="utf-8")as file:
+    file.write("xq:10\n")
+    file.write("lm:15\n")
\ No newline at end of file