Here's the example used in the original code above.switch(ch) { case 'a' : command = 10; break; case 'r' : command = 20; break; case 'z' : command = 30; break; default : command = 0; } If the character ch is not 'a', or 'r', or 'z' then the variable command is ...
if语句后面可以跟随一个可选的else if ... else语句,其对于测试各种条件非常有用。 switch case 语句 类似于if语句,switch ... case通过允许程序员指定应在各种条件下执行的不同代码来控制程序的流程。 条件运算符 ? : 条件运算符? :是C语言中唯一的三元运算符。 7、循环 while循环 while循环将会连续、无限...
BREAKING: Add Wrong Password wifi status case (#7652) BREAKING: analogWriteRange 8-bit default (#7456) BREAKING: HTTPClient: RequestHandler: Pass String by const reference (#6583) Boot eboot: .RODATA, upstream uzlib, move CRC, save 112 bytes (#7844) Update eboot to build with C17, not ...
feat(matter): New example => Wifi Prov within Matter as alternative for wireless network provisioning by @SuGlider in #10658 feat(matter): Adds Matter Enhanced Color Light Endpoint (CW/WW/RGB) by @SuGlider in #10657 feat(matter): Adds a new Matter Endpoint: Generic Switch (smart button)...
///olikraus/u8g2/wiki/fntgrpiconic switch(symbol) { case SUN: u8g2.setFont(u8g2_font_open_iconic_weather_6x_t); u8g2.drawGlyph(x, y, 69); break; case SUN_CLOUD: u8g2.setFont(u8g2_font_open_iconic_weather_6x_t); u8g2.drawGlyph(x, y, 65); break; case CLOUD: u8g2....
3.6.1 connectErrorString —— 获取连接错误对应的信息 函数说明: /** * 获取错误code对应的信息 */ const __FlashStringHelper* Adafruit_MQTT::connectErrorString(int8_t code) { switch (code) { case 1: return F("The Server does not support the level of the MQTT protocol requested"); case ...
switch (Serial.read()) { case 'A': Serial.println("That's the first letter of the abecedarium."); break; case 'Z': Serial.println("That's the last letter of the abecedarium."); break; } } Side notes: By default, Unity uses a subset of the .NET framework, so if you get th...
This is really simple, the instruction ISR() is a macro that tells the compiler that the following function is an Interrupt Service Routine. While ANALOG_COMP_vect is calledInterrupt Vectorand it tells the compiler which interrupt is associated to that routine. In this case it is the Analog ...
i am making a website in php i make left menu like this these menu coming from database in one string. i am printing it with echo. i use image as a background to each menu. now i want like this i have... Which is faster between php switch case or database query in this conte...
and Processing.SimpleRead is a Processing example that includes Arduino code. In Processing, select File→Examples→Libraries→Serial→SimpleRead to see an example that reads data from the serial port and changes the color of a rectangle when a switch connected to Arduino is pressed and released....