if (num== 20) num0:Serial.print(kp);Serial.print(',');Serial.print(ki); Serial.print() Serial.print(kd); Serial.print() Serial.print(dl); Serial.print(" Serial.print(sp); Se盟ri潺翱l.print( ') Serial.print(si); Serial.print(",'); Serial.print(sd); Serial.print(",'); Serial.println(angle);
时间: 2023-12-12 18:02:17 浏览: 27
这段代码中,如果变量 num 的值等于 20,程序会执行一些操作,包括将变量 kp、ki、kd、dl、sp、si、sd 和 angle 的值打印到串口。
具体来说,程序会调用 Serial.print() 函数将 kp 的值打印到串口,并且在后面加上一个逗号。然后程序会将 ki 的值打印到串口,并且在后面加上一个逗号。接着程序会将 kd 的值打印到串口,并且在后面加上一个逗号。然后程序会将变量 dl 的值打印到串口,并且在后面加上一个空格。接着程序会将变量 sp 的值打印到串口,并且在后面加上一个逗号。然后程序会将 si 的值打印到串口,并且在后面加上一个逗号。接着程序会将 sd 的值打印到串口,并且在后面加上一个逗号。最后程序会将变量 angle 的值打印到串口,并且在后面加上一个换行符。
这段代码的作用是在调整 PID 控制器的参数时,实时打印出调整后的参数值和系统的输出值,以便进行调试和优化。
相关问题
给下面的代码加上计算器窗口界面,要有显示器和键盘,并分析出生成后的代码信息处理流程: import math class Calculator: def init(self): self.result = 0 def add(self, num): self.result += num def sub(self, num): self.result -= num def mul(self, num): self.result *= num def div(self, num): if num == 0: print("Error: Cannot divide by zero!") else: self.result /= num def getResult(self): return self.result def clear(self): self.result = 0 def main(): calculator = Calculator() while True: print("Please select an operation:") print("1. Add") print("2. Subtract") print("3. Multiply") print("4. Divide") print("5. Clear") print("0. Exit") choice = int(input("Enter your choice: ")) if choice == 0: break elif choice == 1: num = float(input("Enter a number: ")) calculator.add(num) print("Result:", calculator.getResult()) elif choice == 2: num = float(input("Enter a number: ")) calculator.sub(num) print("Result:", calculator.getResult()) elif choice == 3: num = float(input("Enter a number: ")) calculator.mul(num) print("Result:", calculator.getResult()) elif choice == 4: num = float(input("Enter a number: ")) calculator.div(num) print("Result:", calculator.getResult()) elif choice == 5: calculator.clear() print("Result:", calculator.getResult()) else: print("Invalid choice. Please try again.") if name == 'main': main()
以下是加上计算器窗口界面后的代码,包括显示器和键盘界面的设计:
```python
import math
import tkinter as tk
class Calculator:
def __init__(self):
self.result = 0
def add(self, num):
self.result += num
def sub(self, num):
self.result -= num
def mul(self, num):
self.result *= num
def div(self, num):
if num == 0:
self.result = "Error: Cannot divide by zero!"
else:
self.result /= num
def getResult(self):
return self.result
def clear(self):
self.result = 0
class CalculatorGUI:
def __init__(self, master):
self.master = master
master.title("Calculator")
self.result_label = tk.Label(master, text="0", width=20, font=("Arial", 20))
self.result_label.grid(row=0, column=0, columnspan=4)
self.create_buttons()
self.calculator = Calculator()
def create_buttons(self):
self.button1 = tk.Button(self.master, text="1", width=5, height=2, command=lambda: self.button_click(1))
self.button2 = tk.Button(self.master, text="2", width=5, height=2, command=lambda: self.button_click(2))
self.button3 = tk.Button(self.master, text="3", width=5, height=2, command=lambda: self.button_click(3))
self.button4 = tk.Button(self.master, text="4", width=5, height=2, command=lambda: self.button_click(4))
self.button5 = tk.Button(self.master, text="5", width=5, height=2, command=lambda: self.button_click(5))
self.button6 = tk.Button(self.master, text="6", width=5, height=2, command=lambda: self.button_click(6))
self.button7 = tk.Button(self.master, text="7", width=5, height=2, command=lambda: self.button_click(7))
self.button8 = tk.Button(self.master, text="8", width=5, height=2, command=lambda: self.button_click(8))
self.button9 = tk.Button(self.master, text="9", width=5, height=2, command=lambda: self.button_click(9))
self.button0 = tk.Button(self.master, text="0", width=5, height=2, command=lambda: self.button_click(0))
self.button_add = tk.Button(self.master, text="+", width=5, height=2, command=lambda: self.operation_click("+"))
self.button_subtract = tk.Button(self.master, text="-", width=5, height=2, command=lambda: self.operation_click("-"))
self.button_multiply = tk.Button(self.master, text="*", width=5, height=2, command=lambda: self.operation_click("*"))
self.button_divide = tk.Button(self.master, text="/", width=5, height=2, command=lambda: self.operation_click("/"))
self.button_clear = tk.Button(self.master, text="C", width=5, height=2, command=lambda: self.clear_click())
self.button_equals = tk.Button(self.master, text="=", width=5, height=2, command=lambda: self.equals_click())
self.button1.grid(row=3, column=0)
self.button2.grid(row=3, column=1)
self.button3.grid(row=3, column=2)
self.button_add.grid(row=3, column=3)
self.button4.grid(row=2, column=0)
self.button5.grid(row=2, column=1)
self.button6.grid(row=2, column=2)
self.button_subtract.grid(row=2, column=3)
self.button7.grid(row=1, column=0)
self.button8.grid(row=1, column=1)
self.button9.grid(row=1, column=2)
self.button_multiply.grid(row=1, column=3)
self.button_clear.grid(row=4, column=0)
self.button0.grid(row=4, column=1)
self.button_equals.grid(row=4, column=2)
self.button_divide.grid(row=4, column=3)
def button_click(self, number):
current = self.result_label.cget("text")
if current == "0":
self.result_label.config(text=str(number))
else:
self.result_label.config(text=current + str(number))
def operation_click(self, operation):
current = self.result_label.cget("text")
self.calculator.result = float(current)
self.operation = operation
self.result_label.config(text="0")
def clear_click(self):
self.calculator.clear()
self.result_label.config(text="0")
def equals_click(self):
current = self.result_label.cget("text")
self.calculator.result = float(current)
if self.operation == "+":
self.calculator.add(self.calculator.getResult())
elif self.operation == "-":
self.calculator.sub(self.calculator.getResult())
elif self.operation == "*":
self.calculator.mul(self.calculator.getResult())
elif self.operation == "/":
self.calculator.div(self.calculator.getResult())
self.result_label.config(text=str(self.calculator.getResult()))
if __name__ == '__main__':
root = tk.Tk()
calculator_gui = CalculatorGUI(root)
root.mainloop()
```
这个代码为用户提供了一个计算器界面,包括数字键、运算符键、清除键、等于键和显示器。当用户点击数字键时,数字将添加到显示器上。当用户点击运算符键时,当前数字将被存储并清除显示器。当用户点击等于键时,计算器将执行相应的操作并将结果显示在显示器上。如果用户点击清除键,那么计算器的结果将被重置为零。整个程序的控制流程是由按钮的事件处理程序控制的,这些事件处理程序与 Calculator 类中定义的方法相对应。
Serial.print
Serial.print() 是一个 Arduino IDE 中的函数,用于将数据打印到串行监视器。该函数可以打印数字、字符和字符串等不同类型的数据。它的语法如下:
```C++
Serial.print(data);
```
其中,data 可以是任何有效的数据类型,包括 int、float、char、String 等。例如,下面的代码将数字 123 打印到串行监视器:
```C++
int num = 123;
Serial.print(num);
```
在串行监视器中,将显示 "123"。如果要打印多个数据,可以使用多个 Serial.print() 函数,例如:
```C++
int num1 = 123;
float num2 = 3.14;
char ch = 'A';
String str = "Hello";
Serial.print(num1);
Serial.print(", ");
Serial.print(num2);
Serial.print(", ");
Serial.print(ch);
Serial.print(", ");
Serial.print(str);
```
在串行监视器中,将显示 "123, 3.14, A, Hello"。