save project

diy.py

@@ -5,4 +5,6 @@ with open(r'C:\Users\lenovo\Desktop\book.txt','r',encoding='utf-8') as file:
         if '小兰：12本' in data:
             data = data.replace('小兰：12本','小兰：1444本')
         new += data
-with.wr
\ No newline at end of file
+
+with open(r'C:\Users\lenovo\Desktop\book.txt','w',encoding='utf-8') as file:
+    file.write(new)

ljt.py

+class Car:
+    def __init__(self):
+        self.color = "black"
+        self.speed = "3.7s"
+BMW_Z4 = Car()
+print("颜色:"+BMW_Z4.color)
+print("百里加速度:"+BMW_Z4.speed)
\ No newline at end of file