save project

diy.py

-with open("C:\\Users\\帛帛\\Desktop\\xxs.txt","w",encoding="utf-8") as file:
-    file.write('小兰：12本\n')
-    file.write('小sb：1本\n')
-    file.write('hp：10000本\n')
+ddd = ""
+with open("C:\\Users\\帛帛\\Desktop\\xxs.txt","r",encoding="utf-8") as file:
+    for i in file:
+        if "sb:10" in i:
+        i = i.replace("sb:10","sb:9")
+    ddd += i        
+
+with open("C:\\Users\\帛帛\\Desktop\\xxs.txt","r",encoding="utf-8") as file:
+    file.write(ddd)