Python 字符串切割函数设计

s="   fs.fes..23...43....tghf    "

print "要切割的字符串为：",s ,"\n"

s = s.strip()  #去掉字符串左右两边空格

print "输出去掉空格的字符串：",s,"\n"

# sep 为切割字符串的符号

sep = '.'   

def my_split(src, sep):  #自定义my_split()函数

    a = s.find(sep)   #find返回查找字符开始的索引

    w1 = s[:a]

    print(w1)

    b = a


    n = len(sep)

    while b <= len(s) and b != -1:

        while s[a:a + n] == sep:

            a = a + n

        b = s.find(sep, a)  #从a开始查找sep

        if b != -1:

            print(s[a:b])

        else:

            print(s[a:])

        a = b

print '调用 my_split函数,提取切割出的字符串：\n'

my_split(s, sep)