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'
-with open(r"C:\Users\002\Desktop\xt.txt","a",encoding="utf-8") as i:
-    i.write("小兰：12本\n")
-    i.write("小丽：11本\n")
-    i.write("李文：9本\n")
-    i.write("张伟：16本\n")
\ No newline at end of file
+with open(r"C:\Users\002\Desktop\xt.txt","r",encoding="utf-8") as i:
+    
+for date in a:
+    if "小兰:12" in i:
+        print("数据在")
+