用python实现插花实例
其他
2019-03-16 13:21:02
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# 插花
# 定义变量a,b
a = [1,2,3,4,5,6,7,8,9,10]
b = [11,12,13,14,15,16,17,18,19,20]
# 定义变量i
i = 0
# 假设ys在a里面
for ys in a :
# 把ys从a中一个一个拿出来，插到b里面,括号里面第一个参数是步长，第二个是要插入的元素
b.insert(i,ys)
# 定义步长
i += 2
# 输出b
print(b)
# 一个列表里面，前后值互换
# 定义列表a
a = [1,2,3,4,5,6,7,8,9,10]
# 定义i，为循环条件初始值
i = 0
# 循环判断条件
while i < len(a)-1 :
# 前后值互换
a[i],a[i+1] = a[i+1],a[i]
# 步长
i += 2
# 输出a,[2, 1, 4, 3, 6, 5, 8, 7, 10, 9]
print(a)
插花
a = [1,2,3,4,5,6,7,8,9,10]
i = 0
while i < len(a)-1 :
t = a[i]
a[i] = a[i+1]
a[i+1] = t
i += 2
print(a)
转载自blog.csdn.net/weixin_44651916/article/details/88545162