Open the securities quotation software.
Enter the stock code and press Enter to enter the time-sharing chart, and press F5 to enter the K-line chart.
Click the right mouse button to move to the common coordinates, and put a tick between the common K line and the moving average 1 to restore.
K line is also called yin-yang line, bar line, red and black line or candle line. After a period of trading, the stock price forms a special region or form on the chart, and different forms show different meanings.