save project

diy1.py

-list1 = []
-for a in range(0, 1000):
-    for b in range(0, 1000):
-        list1.insert(0, 0)
+import time
+a=time.time()
+print('开始时间是:',a)
+for an in range(0,1001):
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+    for b in range(0,1001):
+        c=1000-a-b
+        if an**2+b**2==c**2 :
+            print('an,b,c的值分别为:',an,b,c
+e=time.time()
+print('结束时间为:',e)
+f=e-a
+print('总共耗时:',f)
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