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交作业

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東寶一童

#1 Created at ... [Delete] [Delete and Lock User]

交作业

    static String buildSelectSql(String table, String[] fields) {
        var sj = new StringJoiner(", ", "SELECT ", " FROM "+table);
        for (String field : fields){
            sj.add(field);
        }
        return sj.toString();
    }

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