finding indices in a string

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may gor
may gor 2016-12-16
回答： Adam 2016-12-16
how can i find the indices of the leading zeros in this string: '123 0009 90'

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回答（2 个）

KSSV
KSSV 2016-12-16
str = '123 0009 90' ;
idx = findstr(str,'0')
  2 个评论
may gor
may gor 2016-12-16
i need only the indices of '000' before the '9'(not the zero after the 9 in '90')
KSSV
KSSV 2016-12-16
It gives all the indices.....you can pick the first three, that's what you wanted..

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Adam
Adam 2016-12-16
idx = strfind( str, ' 0' );
will find you the start of each leading 0. Then you can count the zeros after each of those before a 'proper' number.
strsplit( str, ' ' );
will divide up your string into each component also, but getting the indices from that would be a tedious process so probably not too helpful.

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