常用strip()去除字符串string首尾空格，在用split(‘XX’)将字符串string分成字符串列表。
e.g:
>>> s1 = ' 123||456ab||789|| kd290b ' * 2 >>> print s1 123||456ab||789|| kd290b 123||456ab||789|| kd290b >>> def separate_string(string,spl = '||'): string = string.strip() slst = string.split(spl) for s in slst: s = s.strip() if s.isalnum(): print s else: print 'String illegal!' >>> separate_string(s1) 123 456ab 789 String illegal! 456ab 789 kd290b >>> stemp = s1.strip() >>> print stemp 123||456ab||789|| kd290b 123||456ab||789|| kd290b >>> stemplist = stemp.split('||') >>> print stemplist ['123', '456ab', '789', ' kd290b 123', '456ab', '789', ' kd290b'] >>> >>> s2 = ' 1sd*q564 *2349d* jh588 * we890 *3dfghl ' >>> separate_string(s2,'*') 1sd q564 2349d jh588 we890 3dfghl 不用split()函数，用c++习惯去除空格分割字符串： >>> s3 = ' uidd 3fg 23fd rflkd 6ykpld 9dfghkotr ' >>> def strip_space(string): string = string.strip() pos_start = string.find(" ") print string[:pos_start] #the first ftring pos_end = pos_start while pos_end <= len(string) and pos_end != -1: while " " == string[pos_start]: pos_start = pos_start + 1 pos_end = string.find(" ",pos_start) if -1 != pos_end: print string[pos_start:pos_end] else: print string[pos_start:] pos_start = pos_end >>> strip_space(s3) uidd 3fg 23fd rflkd 6ykpld 9dfghkotr >>>