save project

diy1.py

-list1 = []
-for a in range(0, 1000):
-    for b in range(0, 1000):
-        list1.insert(0, 0)
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+import time
+start_time=time.time()
+print('开始时间：',start_time)
+for a in range(0,1000):
+    for b in range(0,1000):
+        c=1000-a-b
+        if(a**2+b**2==c**2):
+            print(a,b,c)
+end_time=time.time()
+use_time=end_time-start_time
+print('结束时间：',end_time)
+print('使用时间：',use_time)
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