save project

diy.py

@@ -4,3 +4,10 @@ with open(r"C:\Users\xmbc\Desktop\text.txt","a",encoding="utf-8") as gvhj:
     gvhj.write('李文：9本')
     gvhj.write('李文：9本')
     gvhj.write('张伟：16本')
     gvhj.write('张伟：16本')
     gvhj.write('小兰:12本')
     gvhj.write('小兰:12本')
+    for data in gvhj:
+        if"小强:10本" in data:
+            print("数据在文件中")
+        else:
+            print("数据不在文件中") 
+
+   
\ No newline at end of file