1.地图经纬度倒置
basemap bluemarble plot the opposite longitudinal section
basemap plot the opposite longitudinal section
Python 列表排序方法reverse、sort、sorted详解
python倒序排列方法梳理
1、数组倒序：
原始元素的倒序排列
arr = [1,2,3,4,3,4]
(1)print arr[::-1] ---->[4, 3, 4, 3, 2, 1]
(2)arr.reverse()
print arr ---->[4, 3, 4, 3, 2, 1]
(3)reversed(arr) #返回一个倒序可遍历对象，需序遍历出
arr = [1,2,3,4,3,4]
reversed_arr = []
for i in reversed(arr):
reversed_arr.append(i)
print reversed_arr ---->[4, 3, 4, 3, 2, 1]
2、字符串倒序：
(1)利用字符串截取
param = 'hello'
print param[::-1] ---->'olleh'
(2)利用reversed()返回倒可迭代对象（字符串实现）
param = 'hello'
rev_str = ''
for i in reversed(param):
rev_str += i
print rev_str ---->'olleh'
(3)利用reversed()返回倒可迭代对象（数组实现）
rev_arr = []
for i in reversed(param):
rev_arr.append(i)
print ''.join(rev_arr)
另：
元素排序后的倒序排列：
1、sorted(...)生成新的已排列数组
sorted(iterable, cmp=None, key=None, reverse=False) --> new sorted list
2、arr.sort(...)直接操作arr，arr内元素进行正序排列
元素内的排序
param = 'hello' #返回元素内的排序
rev_str = ''.join(sorted(param)) #sorted(param)返回倒序排列的数组['e', 'h', 'l', 'l', 'o']
print rev_str ---->'ehllo'
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作者：语默静喧
来源：CSDN
原文：https://blog.csdn.net/wanghuafengc/article/details/17914345
版权声明：本文为博主原创文章，转载请附上博文链接！
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