The system comes with simsun.ttc and mingliu.ttc. I first used Song font to display a paragraph of text, then used AddFontResource to load Weibei font, and after the text was displayed, I used RemoveF...
Why does float report an error when used in Keil C? For example, the following code: float a; a=3.14; printf("%f",a); Why does this report an error?...
On a whim, I had the idea of using LDC1614 to wind a coil myself to make a stick-shaped inductor to measure the liquid level. I tried it and found that the data really changed when the liquid level ro...
[size=4] The national standard "Safety Voltage" stipulates that the ratings of safety voltage in my country are 42V, 36V, 24V, 12V and 6V, which should be selected according to factors such as the wor...