auto save

diy.py

+import time
+begin=time.time()
+print('计算开始，时间为',begin)
+for a in range(0,1001):
+    for b in range(0,1001):
+        for c in range(0,1001):
+            if a**2+b**2==c**2 and a+b+c==1000:
+                print("a,b,c值为",a,b,c)
+end=time.time()
+print('计算结束，时间为',end)
+f=end-begin
+print('所用时间为',f)