Question

帮我解释这段代码T_T为什么它会一直显示语法错误，意外＆＃39;：＆＃39; exepcting输入结束数据库：{

database: {
    total_car_price: 20000,
    stock_car_price: 20000,
    features: {
        rim: {
            '16' => 50,
            '15' => 30,
            '14' => 10
        },
        color: {
            'blue' => 0,
            'red'  => 0,
            'yellow' => 0
        },
        tint: {
            '100' => 80,
            '80' => 50,
            '50' => 0
        },
        seat: {
            'leather' => 500,
            'PVC' => 300
        }
    }
}

puts "Original price : #{database[:stock_car_price]}"

database[:features].each do |feature, data|
    puts feature.upcase
    data.each do |option, extra_cost|
        puts "#{option} :: #{extra_cost}"
    end
    while true
        selection = gets.chomp
        if data.keys.include? selection #make it general that can accept string/integer
            database[:total_car_price] += data[selection]
            break
        else
            puts 'Incorrect selection!'
        end
    end
end


puts "Stock Price :: #{database[:stock_car_price]}"
puts "Final Price :: #{database[:total_car_price]}"

Answer 1

你应该像这样解析json：

json = {
   database: {
    total_car_price: 20000,
    stock_car_price: 20000,
    features: {
        rim: {
            '16' => 50,
            '15' => 30,
            '14' => 10
        },
        color: {
            'blue' => 0,
            'red'  => 0,
            'yellow' => 0
        },
        tint: {
            '100' => 80,
            '80' => 50,
            '50' => 0
        },
        seat: {
            'leather' => 500,
            'PVC' => 300
        }
    }
}
}

parsed_json = JSON.parse(json.to_json)

puts "Original price : #{parsed_json['database']['stock_car_price']}"

以下是工作样本：

working code

语法错误，意外＆＃39;：＆＃39;期待输入结束

1 个答案: