求Fibonacci数列前40个数,这个程序谁能给我解释下吗
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发布时间：2025-01-03 01:42
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try {
if (rs.first() ) {
sql = "update ProductStore set 数量= 数量+" + jtnum.getText().trim()+",";
sql = sql + " where 名称='" + jtname.getText().trim() + "'";
}
else {
sql = "insert into ProductStore(名称,数量)values( ";
sql = sql + "'" + jtname.getText() + "',";
sql = sql + "'" + jtnum.getText() + "',";
sql = sql + ")";
}
}
catch (SQLException ex) {
}
