1, if it is a computer version of the trading software. Generally, you can press F3 to enter the time-sharing chart of Shanghai Stock Exchange Index, then press F5 to enter the daily K-line chart of Shanghai Stock Exchange Index, press F8 to switch to the 60-minute K-line chart, enter "KDJ" and press enter. After KDJ appears, point the mouse to any color line of KDJ, and then right click, a drop-down menu will pop up, and you can choose to adjust the index parameters.

2, if it is mobile phone trading software. Then find any market, find "Settings" in the K-line chart, find the KDJ indicator, and then click the menu option nearby to enter the indicator page for setting.

3. We generally judge trading opportunities through the overbought and oversold areas of KDJ indicators and the intersection of indicators. However, it should be noted that when the KD value hovers or crosses around 50%, it is relatively meaningless, and speculative stocks are not suitable for KDJ indicators.