语法错误，意外“：”希望结束输入

Question

1. 帮助我这个代码T_T为什么它继续显示语法错误，意外“：” exepcting结束输入数据库：{

   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

你应该分析你JSON是这样的：

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']}" 

这里是工作样例：

working code