python遍历数组的两种方法

第一种,最常用的,通过for in遍历数组

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colours = ["red","green","blue"]
 
for colour in colours:
    print colour
 
# red
# green
# blue


第二种,先获得数组的长度,然后根据索引号遍历数组,同时输出索引号

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colours = ["red","green","blue"]
 
for i in range(0, len(colours)):
    print i, colour[i]
 
# 0 red
# 1 green
# 2 blue
原文地址:https://www.cnblogs.com/wicub/p/5436319.html