save project

diy.py

@@ -2,5 +2,16 @@
 # a=open(r'C:\Users\EDZ\Desktop\book.txt','a',encoding='utf-8')
 # a.write('小兰:12\n小丽:11\n李文:9\n张伟:16\n')
 # a.close()
-with open(r'C:\Users\EDZ\Desktop\book.txt','a',encoding='utf-8') as a:
-    a.write('x:12/nl:15/n')
+with open(r'C:\Users\EDZ\Desktop\book.txt','r',encoding='utf-8') as a:
+
+     
+     for i in a:
+         if 'x:12' in i:
+             print("有")
+        # else:
+        #     print("没有")
+        
+
+
+   # a.write('x:12\nl:15\n')
+