布尔表现不正常

Question

我正在对此方法进行ajax调用

def check_solution
    puzzle = Puzzle.find(params[:id])
    solved = puzzle.grid.solution == params[:solution].to_s
    solved_before = params[:solved_before]

    puts !solved_before

    if(solved && !solved_before)
      Puzzle.find(params[:id]).increment!(:times_solved, by =1)
    end


    respond_to do |format|
      response = { :status => "ok", :message => "Success!", :html => solved}
      format.json { render json: response }
    end
  end

从我的本地服务器进入的参数是

Parameters: {"solution"=>"0001000010110011001100000", "solved_before"=>"false", "id"=>"3758"}

为什么，当我打印出来时！solve_before with puts，它会说假而不是真吗？

Answer 1

那是因为solved_before以字符串形式出现而不是布尔值。