public SelectSql tables(String... tables) {
        String split = "";
        for (String table : tables) {
            sql.append(split);
            split = ",";
            sql.append(table.trim()).append(" ");
        }
        return this;
    }
@author Robert HG (254963746@qq.com) on 3/8/16.
lts-core/src/main/java/com/github/ltsopensource/store/jdbc/builder/SelectSql.java