save project

jgf.py

 # filel=open(r'C:\\Users\\Think\\Desktop\\text.txt','w',encoding='utf-8')
 # filel.write('小兰:12本,小明:10本')
 # filel.close()
-filel=open(r'C:\\Users\\Think\\Desktop\\text.txt','a',encoding='utf-8')
-filel.write('小兰:12本\n,小明:10本\n,口巴:15本\n')
-filel.close()
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+# filel=open(r'C:\\Users\\Think\\Desktop\\text.txt','a',encoding='utf-8')
+# filel.write('小兰:12本\n,小明:10本\n,口巴:15本\n')
+# filel.close()
+with open(r'C:\\Users\\Think\\Desktop\\text.txt','r',encoding='utf-8')as filel:
+    for data in filel:
+        if'小强:10本'in data:
+            print('数据在文件中') 
\ No newline at end of file