save project

diy.py

@@ -7,13 +7,11 @@ with open(r"C:\Users\Administrator\Desktop\tes.txt","w",encoding="utf-8")as f:
     f.write('张伟：16本\n')
 ff=""
 with open(r"C:\Users\Administrator\Desktop\tes.txt","r",encoding="utf-8")as f:
-    a=f.read()
     for i in f:
-      
-        if "张伟：16本\n" in i:
-            i.replace('张伟：16本\n','张伟：17本\n')
+        if "张伟：16本" in i:
+            i=i.replace('张伟：16本','张伟：17本')
         ff+=i
-
+    print(ff)
 
 with open(r"C:\Users\Administrator\Desktop\tes.txt","w",encoding="utf-8")as f:
     f.write(ff)
\ No newline at end of file