c# - How to split strings with two chars ('||') -

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this question has answer here:

othermatcharray= "march | monday | tuesday|| december | wednesday | friday"   string[] matchdata = othermatcharray.split('||');

how can split 1 string , split again using || , | ?

    string[] matchdata = othermatcharray.split(new string[] { "||" }, stringsplitoptions.none);

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