python调用c++传递数组 python调用c++传递数组的实例
ShellCollector 人气:9如下所示:
INPUT = c_int * 4 # 实例化一个长度为2的整型数组 input = INPUT() # 为数组赋值(input这个数组是不支持迭代的) input[0] = 11 input[1] = 2 input[2] = 3 input[3] = 4 dll.teststring.restype = c_char_p # bytes(aaaa, encoding="utf-8") a = dll.teststring(input,4) MYLIBDLL char* teststring(int* plus1, int len); char* teststring(int* plus1,int len) { for (int i = 0; i < len; i++) { printf("%d \n", plus1[i]); } Mat mat; //加载图片 mat = imread("bgs.jpg", CV_LOAD_IMAGE_COLOR); printf("a %d %d", mat.rows, mat.cols); //if (!mat.empty()) { int m, n; n = mat.cols * 3; m = mat.rows; unsigned char *data = (unsigned char*)malloc(sizeof(unsigned char) * m * n); int p = 0; for (int i = 0; i < m; i++) { for (int j = 0; j < n; j++) { data[p] = mat.at<unsigned char>(i, j); p++; } } *plus1 = p; return (char*)data; }
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