在Python中创建压缩函数？

在Python中创建压缩函数？

这是压缩函数的简短python实现：

def compress(string):    res = ""    count = 1    #Add in first character    res += string[0]    #Iterate through loop, skipping last one    for i in range(len(string)-1):        if(string[i] == string[i+1]): count+=1        else: if(count > 1):     #Ignore if no repeats     res += str(count) res += string[i+1] count = 1    #print last one    if(count > 1):        res += str(count)    return res

这里有一些例子：

>>> compress("ddaaaff")'d2a3f2'>>> compress("daaaafffyy")'da4f3y2'>>> compress("mississippi")'mis2is2ip2i'