可用于30分钟K线，支持4种货币，黄金、欧美、镑美、美日(Can be used in 30 minutes K line, support 4 currencies)

个人编写的外汇mt4源码，应用于黄金交易，提供一个思路，只能用于日线交易(The application of gold trading can provide a way of thinking, which can only be used for daily transactions.)