save project

diy.py

+'''
+sss=open('C:\\Users\\jiang\\Desktop\\test.txt','w',encoding='utf-8')
+sss.write('小兰:12本')
+sss.write('小强:12本\n')
+sss.write('李明:15本\n')
+sss.close
+'''
+
+
+'''
+with open('C:\\Users\\jiang\\Desktop\\test.txt','w',encoding='utf-8') as sss:
+        sss.write('小兰:15本\n')
+'''
+
+with open('C:\\Users\\jiang\\Desktop\\test.txt','w',encoding='utf-8') as sss:
+#sss.write('小兰:12本')
+#sss.write('小强:12本\n')
+#sss.write('李明:15本\n')
+        for i in sss:
+            if "小强:12本"in i:
+               print("数据在文件中")
\ No newline at end of file