#-*-coding:utf-8-*-'''字符串索引与切片'''# 索引s = 'bowen's1 =s[0]   # bprint(s1)# 切片,包头不包尾s2 = s[:3]print(s2)  # bows3 = s[-1]print(s3)  # ns4 = s[-2]print(s4) # es5 =s[:]print(s5) # 复制s6 = s[0:0]print(s6)

 

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二、隔空取

#-*-coding:utf-8-*-'''字符串索引与切片'''# 索引s = 'bowen'# 隔空取，首尾，步长s7 = s[0:5:2]print(s7)

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三、倒着取

#-*-coding:utf-8-*-'''字符串索引与切片'''# 索引s = 'bowen'# 倒取，首尾，步长s7 = s[-1::-1]print(s7)

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#-*-coding:utf-8-*-'''字符串索引与切片'''# 索引s = 'bowen'# 倒取，首尾，步长s7 = s[::-1]print(s7)