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為什麼最後會報(bào)錯(cuò)？

    public static int count(int n){
        int result;
        result = n/4+count(n-4);
        if (n<0)
            result = 0;
        return result;
    }
    
    public static void main(String[] args){
        System.out.println(count(5));
    }

Exception in thread "main" java.lang.StackOverflowError

at huam.count(huam.java:4)
at huam.count(huam.java:4)
at huam.count(huam.java:4)
at huam.count(huam.java:4)