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                # 零基礎學python-7.5 文本解析 這一章節我們簡單的聊聊文本解析的兩種方法: 1.分片,通過分片,記錄偏移處,然后提取想要的字符串 例子: ~~~ >>>?line='aaa?bbb?ccc'?? >>>?col1=line[0:3]?? >>>?col3=line[8:]?? >>>?col1?? 'aaa'?? >>>?col3?? 'ccc'?? >>>??? ~~~ 2.split() ~~~ >>>?line='aaa?bbb?ccc'?? >>>?a=line.split?('?')?? >>>?a?? ['aaa',?'bbb',?'ccc']?? >>>?a[0]?? 'aaa'?? >>>?a[1]?? 'bbb'?? >>>?a[2]?? 'ccc'?? >>>??? ~~~ ~~~ >>>?line='aaa,bbb,ccc'?? >>>?a=line.split?(',')?? >>>?a?? ['aaa',?'bbb',?'ccc']?? >>>??? ~~~ 使用split方法,根據特征碼提取不同的字符 雖然上面的兩種方法對于平常文本解析的潛力有限,但是它們對于我們平常編程的時候值的傳遞有著不少的用處 例如json字符串就是其中一個比較典型的例子,使用{} [] , 三種符號,區分開各種對象 就說到這里,謝謝大家
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