public static void main(String[] args) {
        String str = "你好，去，不错，可以，有意思，过来";
        int length = 5;
        String[] arr = str.split("，");
        List<String> strList = new ArrayList<String>();
        String temp = "";
        int size = 0;
        for(String s : arr) {
            if(temp.equals("")) {
                if(s.length() > length) {
                    strList.add(s);
                } else {
                    temp = s;
                    size = s.length();
                }
            } else {
                if(size + s.length() > length) {
                    strList.add(temp);
                    temp = s;
                    size = s.length();
                } else {
                    temp += "," + s;
                    size += s.length();
                }
            }
        }
        if(!temp.equals("")) {
            strList.add(temp);
        }
        for(String s : strList) {
            System.out.println(s);
        }
    }