我跑的时候：
bid_items = db.execute('select bid_item from people where bidder_id=?', request.form['bidder'])
我得到了
sqlite3.ProgrammingError: Incorrect number of bindings supplied. The current statement uses 1, and there are 3 supplied.
我明白我提供了很多东西。我确定这是一个语法错误。但我无法弄清楚。