工程初始化

.gitignore

+.vscode/*
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0/main.py

+from numba import jit
+from numpy import arange
+import time
+
+@jit
+def numba_sum(arr):
+    M, N = arr.shape
+    result = 0.0
+    for i in range(M):
+        for j in range(N):
+            result += arr[i,j]
+    return result
+
+def sum(arr):
+    M, N = arr.shape
+    result = 0.0
+    for i in range(M):
+        for j in range(N):
+            result += arr[i,j]
+    return result
+
+if __name__ == "__main__":
+    a = arange(9).reshape(3,3)
+    start_time = time.time()
+    for i in range(10000000):
+        numba_sum(a)
+    end_time = time.time()
+    print ("使用numba：", end_time - start_time)
+
+    start_time = time.time()
+    for i in range(10000000):
+        sum(a)
+    end_time = time.time()
+    print ("使用cpu：", end_time - start_time)
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