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diy2.py

+import time
 
-# 使用变量i和j，代替乘法算式里面的元素，打印出单个乘法算式
-for i in range(1,10):
-    for j in range(1,i+1):
-        print(j,"x",i,"=",(j*i),end="  ")
-    print()    
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+start_time = time.time()    # 开始时间
+print("开始时间为：", start_time)
+
+list1 = []
+for a in range(0, 1000):
+    for b in range(0, 1000):
+        list1.insert(0, 0)
+end_time = time.time()      # 结束时间
+print("结束时间为：", end_time)
+
+result = end_time - start_time
+print("总共耗时：", result)  
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