Get the ruble price of Bank of China

• Get the ruble spot exchange rate from Bank of China every five minutes
• Push through bark, only push when the price changes
• Save the bark log in the log
• Use cron for scheduled tasks
• Support changing time zone

Principle

• Get the HTML code of Bank of China's foreign exchange website through http library
• Parse the HTML code through goquery to get the spot exchange rate of rubles
• Timing tasks are implemented through cron