标签：font names 元素 数组 print bsp class int nbsp
范围取值
指定范围
names = ["零","一","二","三","四","五","六","七"] print(names[1:4])#打印 一,二,三 左包括右不包括
从某位置取到末尾
names = ["零","一","二","三","四","五","六","七"] print(names[1:])#打印 [‘一‘, ‘二‘, ‘三‘, ‘四‘, ‘五‘, ‘六‘, ‘七‘]
从某位置取到倒数第几个
names = ["零","一","二","三","四","五","六","七"] print(names[1:-3])#打印 [‘一‘, ‘二‘, ‘三‘, ‘四‘]
跳着取值
names = ["零","一","二","三","四","五","六","七"] print(names[0::1])#打印[‘零‘, ‘一‘, ‘二‘, ‘三‘, ‘四‘, ‘五‘, ‘六‘, ‘七‘] //从头到尾一个一个取 print(names[0:-1:2])#打印[‘零‘, ‘二‘, ‘四‘, ‘六‘] //从头到倒数第二个,跳着一个一个取 print(names[0::3])#打印[‘零‘, ‘三‘, ‘六‘] //从头到尾跳着两个取
倒数取值
names = ["零","一","二","三","四","五","六","七"] print(names[5::-1])#打印[‘五‘, ‘四‘, ‘三‘, ‘二‘, ‘一‘, ‘零‘] //第5个元素到第1个元素,倒着一个一个取 print(names[6:2:-2])#打印[‘六‘, ‘四‘] //第6个元素到第2个元素,倒着跳一个一个取 print(names[-1:0:-2]
标签：font names 元素 数组 print bsp class int nbsp
原文地址：http://www.cnblogs.com/Gimaaa/p/6918078.html
