Python2.6引入了 format 格式化字符串的方法,现在格式化字符串有两种方法,就是 % 和 format ,具体这两种方法有什么区别呢?请看以下解析. # 定义一个坐标值 c = (250, 250) # 使用%来格式化 s1 = "敌人坐标:%s" % c 上面的代码很明显会抛出一个如下的TypeError: TypeError: not all arguments converted during string formatting 像这类格式化的需求我们需要写成下面丑陋…
Lonely Pixel I 两种算法之间的性能比较 今天参加LeetCode Weekly Contest 22,第二题 "Lonely Pixel I" 问题描述如下: Given a picture consisting of black and white pixels, find the number of black lonely pixels. The picture is represented by a 2D char array consisting of 'B'…
In this chapter, APIs will make U crazy. Good luck! Next, Review Linear Algebra. Ref: http://blog.csdn.net/u012269327/article/category/2291085 IplImage "modules/core/include/opencv2/core/types_c.h" typedef struct _IplImage { int nSize; /* sizeo…
IplImage 一.资源 In this chapter, APIs will make U crazy. Good luck! Next, Review Linear Algebra. Ref: http://blog.csdn.net/u012269327/article/category/2291085[学习Opencv笔记] 二.IplImage Data structure "modules/core/include/opencv2/core/types_c.h" type…