UnicodeEncodeError: 'ascii' codec can't encode characters in position 16-22: ordinal not in range(128)
在python2.7下,将字符串写入到文件时会出现"UnicodeEncodeError: 'ascii' codec can't encode character u'xa0' in position"的错误,原因是由于python基于ASCII处理字符的,当出现不属于ASCII的字符时,会出现错误信息。