save project

diy1.py

 import time
 
-start_time. =  time.time()
+start_time =  time.time()
 print("开始时间为:",start_time)
-for b in range(0, 1001):
+for a in range(0, 1001):
     for b in range(0, 1000):
         c=1000-a-b
         if a**2+b**2==c**2: