save project

diy.py

@@ -5,18 +5,12 @@
 # file.write('李文：9本\n')
 # file.write('张伟：16本\n')
 # file.close()
-with open(r"C:\Users\玛酷机器人\Desktop\test.txt",'w',encoding='utf-8') as file:
-    file.write('小兰：12本\n')
-    file.write('小丽：11本\n')
-    file.write('李文：9本\n')
-    file.write('张伟：16本\n')
-new_data=''
+# with open(r"C:\Users\玛酷机器人\Desktop\test.txt",'w',encoding='utf-8') as file:
+#     file.write('小兰：12本\n')
+#     file.write('小丽：11本\n')
+#     file.write('李文：9本\n')
+#     file.write('张伟：16本\n')
 with open(r"C:\Users\玛酷机器人\Desktop\test.txt",'r',encoding='utf-8') as file:
     for data in file:
-        if "张伟：16本\n" == data:
-            data=data.replace("张伟：16本\n","张伟：1本\n")
-            
-        new_data+=data
-        # print(new_data)
-with open(r"C:\Users\玛酷机器人\Desktop\test.txt",'w',encoding='utf-8') as file1:
-    file1.write(new_data)
\ No newline at end of file
+        if "张伟：16本\n" ==data:
+            print("它在文件里，你成功了")
\ No newline at end of file