num = [1, 2, 3, 4, 5]
myvec = [x * 2 for x in num]
print(myvec)
[x * 2 for x in num] 的意思就是 循环遍历num ,然后取出每一个值*2, 并将得到的链表最终赋值给myvec
最终打印结果:
下面再举个例子:
inputStr = [1,3,5,7]
positive_labels = [[0, 1] for _ in inputStr]
print(positive_labels)
打印:
FR:徐海涛(hunk Xu)