如果您希望字符串重复n个字符，则可以首先将整个字符串重复n / len次，并在末尾添加n％len个字符。例如，
def repeat_n(string, n):
l = len(s)
full_rep = n/l
# Construct string with full repetitions
ans = ''.join(string for i in xrange(full_rep))
# add the string with remaining characters at the end.
return ans + string[:n%l]
repeat_n('asdf', 10)这将给出输出：
'asdfasdfas'
您还可以对字符串使用'*'操作来重复字符串。例如，
def repeat_n(string_to_expand, n):
return (string_to_expand * ((n/len(string_to_expand))+1))[:n]
repeat_n('asdf', 10)这将给出输出：
'asdfasdfas'