scountfun.m

matlab实用教程

function h = sCountFun(X) 
    h = @subCount; 
    count = X 
    subCount(0, count);  
    function subCount(incr, ini)
        persistent count; 
        initializing = nargin > 1;  
        if initializing
            count = ini; 
        else count = count + incr 
        end