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What if all futures lines are deleted?
Press the "Tab" key on the keyboard to reset the EMA and display it.

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.