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Python 字典使用例子


#!/usr/bin/env python
#coding=utf-8
def buildConnectionString(params):
    return ":".join(["%s=%s" %(k, v) for k, v in params.items()])
if __name__ == "__main__":
    myParams = {"server":"mpilgrim", \
                "database":"master", \
                "uid":"sa", \
                "pwd":"secret"\
                }
    print buildConnectionString(myParams)
    print __name__


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python字符串使用总结



来源:
作者:
灵剑
1.python 字符串通常有单引号('...')、双引号(...)、三引号(...)或('''...''')包围,三引号包含的字符串可由多行组成,一般可表示大段的叙述性字符串。在使用时基本没有差别,

1.python
字符串通常有单引号('...')、双引号("...")、三引号("""... ......

example of python operator overloadind

And last here is the overload operators example:
# map() takes two (or more) arguments, a function and a list to apply the function to
# lambda can be put anywhere a function is expected
# map() calls lambada for every element in the self list
# since Vector has overloaded __getitem__ and __len_ ......

python算法实践1 直接插入排序

# 直接插入排序
def InsertSort(mylist):
size = len(mylist)
i = 1
for i in range(1, size):
if mylist[i] < mylist[i - 1]:
tmp = mylist[i]
j = i - 1
mylist[j + 1] = mylist[j]

j = j - 1
while j > ......

python算法实践5 直接选择排序

#直接选择排序
def SelectSort(mylist):
size = len(mylist)
i = 0
for i in range(0, size):
k = i
for j in range(i + 1, size):
if mylist[j] < mylist[k]:
k = j

if k != i:
tmp = mylist[i]
......

python算法实践6 堆排序

#堆排序
def Heapify(mylist, start, end):
left = 0
right = 0
maxv = 0
left = start * 2
right = start * 2 + 1
while left <= end:
maxv = left
if right <= end:
if mylist[left] < mylist[right]:
maxv = right
......
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