Coding lesson 2

This script is necessary for training, but not for trade. It isn't recommended to trade using this strategy.

The line 1 - SMA , 7 periods, W1-timeframe
The line 2 - SMA , 7 periods chosen timeframe (use D1)

If the price of closing of a candle is higher than both lines - to open a long position
If the price of closing of a candle is lower than any of two lines - to close a position
Short positions aren't used.