可能是:"insert into mytable (ID, NAME, PRICE, NUM) values(" + id + ", \'" + name + "\'," + price + "," + num + ")";有问题。改成下面试试:
"insert into mytable (ID, NAME, PRICE, NUM) values(" + id + ", '" + name + "'," + price + "," + num + ")";
"insert into mytable (ID, NAME, PRICE, NUM) values(" + id + ", '" + name + "'," + price + "," + num + ")";
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