cunchi4221的博客python数组PythonArray contains a sequence of data. In python programming, there is no exclusive array object because we can perform all the array operations using list. Today we will learn about ...
weixin_39609483的博客我有一个变量数组,可能要大量重复使用,所以每次都要清空,用arr=[],是不是良策?几种操作方式,效率差不多:In [4]: %timeit l=range(10000);l=[];10000 loops, best of 3: 115 µs per loopIn [5]: %timeit l=...
Yale曼陀罗的博客将输入数组[1,5,7,2]和数组[0,3,1,2]产生笛卡尔积,就是得到(1,0),(1,3),(1,1),(1,2);就是按照坐标(1,0),(1,3),(1,1),(1,2)取得 x所对应的元素4,7,5,6,(5,0),(5,3),(5,1),(5,2)取得 x 所对应的元素20...