Python中List.index()方法的使用教程

WBOY
Release: 2016-06-06 11:16:41
Original
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 index()方法返回obj出现在列表中最低位索引。
语法

以下是index()方法的语法:

list.index(obj)

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参数

  • obj -- 这是被找到的对象

返回值

此方法返回找到的对象的索引,否则抛出一个异常,表明没有找到对应值
例子

下面的例子显示了index()方法的使用

#!/usr/bin/python

aList = [123, 'xyz', 'zara', 'abc'];

print "Index for xyz : ", aList.index( 'xyz' ) ;
print "Index for zara : ", aList.index( 'zara' ) ;

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当我们运行上面的程序,它会产生以下结果:

Index for xyz : 1
Index for zara : 2

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