recently, regular matching is required for input:
for example, input can only be 60G, 1T is preceded by a number, followed by a capacity unit;
there is a 60G/ month; the front numerical unit of 50G/ half a year is also followed by this kind of control requirement of the unit;
how should a similar regular expression be written? Thank you
/\d+[KMGT](\/(|))?/ d + any
of more than one number
[KMGT] unit (/ (month | half a year)? Optional units of time
'60G/'.match(/^\d+(G|T)(\/\W{1,2})?/g)//["60G/"]
'60G'.match(/^\d+(G|T)(\/\W{1,2})?/g)//["60G"]
'1T'.match(/^\d+(G|T)(\/\W{1,2})?/g)//is not so perfect, for reference only
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