【发布时间】:2019-04-15 17:33:29
【问题描述】:
我有一个代码,我在其中生成随机数列 = numCols 和随机数行数 = numRows。 nomRows 和 numCols 的倍数 = numCells。我想用不同的颜色为每个单元格着色,我知道我拥有的单元格总数,因为那是 numCells。因此我有一个数组“颜色”,它有 6 个值。该数组中的每个数字代表我在该数组中有多少次该颜色。我有一个循环,它为每种颜色生成一个随机数,但始终确保数组中的数字总和永远不会大于 NumCells。您不能总共有 23 个颜色值,并且只有 10 个单元格适合它。现在这工作正常,数组中的总数永远不会大于 numCells。
所以我有一个包含 6 个数字的数组 colors[],我想将该数组推入 mysound2[] 并在推入它之后创建另一个循环,该循环将在该数组中添加另外 2 个数字以最终得到一个数组mysound2[] 包含 8 个数字的总数。
但我无法让它工作,要么我得到一个错误:数组下标的无效类型'int [8] [int [6]]'我猜arduino不喜欢8个数组我只是尝试添加 6 个数字。
或者,如果我尝试其他方法,代码会生成 0,0,0。
请问如何将颜色[] 推入 mysoun2[] 并添加 2 个随机数?
// CODE FOR COLORS
``` int AnalogPin0 = A0; //Declare an integer variable, hooked up to analog pin 0
``` int AnalogPin1 = A1; //Declare an integer variable, hooked up to analog pin 1
void setup() {
Serial.begin(9600); //Begin Serial Communication with a baud rate of 9600
randomSeed(analogRead(0));
}
void loop() {
// 1)Gray, 2)White, 3)Yellow, 4)Blue, 5)Black, 6)Red
int numCols1 = random(1,4);
int numCols2 = random(2,5);
int numCols = numCols1 + numCols2;
int numRows1 = random(2,5);
int numRows2 = random(2,6);
int numRows = numRows1 + numRows2;
int numCells = numCols * numRows;
int colors[] = {5,3,2,1,0,0};
int numAlloc = colors[0] + colors[1] + colors[2] + colors[3] + colors[4] + colors[5];
for (int i=0; i<numCells - numAlloc; i++)
{
int color = random(0,7);
color[colors]++;
}
/*The Serial.print() function does not execute a "return" or a space
Also, the "," character is essential for parsing the values,
The comma is not necessary after the last variable.*/
Serial.print(colors [0]);
Serial.print(",");
Serial.print(numCols);
Serial.print(",");
Serial.print(numRows);
Serial.print(",");
//Serial.print(numCells);
//Serial.print(",");
Serial.println();
delay(5000); // For illustration purposes only. This will slow down your program if not removed
}
//CODE FOR ADDING 8 NUMBERS INTO ONE ARRAY WITH 2 LOOPS
# define Parameters 8
int mysound2[Parameters];
int randNumber =0;
void setup() {
Serial.begin(9600);
randomSeed(analogRead(0));
for (int thisPin = 0; thisPin < Parameters-2; thisPin++) {
randNumber = random(1, 100); // generates between 0 and 127
mysound2[thisPin]= randNumber;
}
for (int thisPin = Parameters-2; thisPin < Parameters; thisPin++) {
randNumber = random(100, 200); // generates between 0 and 127
mysound2[thisPin]= randNumber;
}
}
void loop() {
for (int thisPin = 0; thisPin < Parameters; thisPin++) {
Serial.println(mysound2[thisPin]);
delay(5000);
}
}
//ME TRYING TO COMBINE THE TWO CODES
// 1)Gray, 2)White, 3)Yellow, 4)Blue, 5)Black, 6)Red
# define Parameters 8
int numCols1 = random(1,4);
int numCols2 = random(2,5);
int numCols = numCols1 + numCols2;
int numRows1 = random(2,5);
int numRows2 = random(2,6);
int numRows = numRows1 + numRows2;
int numCells = numCols * numRows;
int colors[] = {5,3,2,1,0,0};
int numAlloc = colors[0] + colors[1] + colors[2] + colors[3] + colors[4] + colors[5];
int color = 0;
int mysound1[Parameters];
int randNumber1 =0;
void setup() {
Serial.begin(9600);
randomSeed(analogRead(0));
for (int thisPin = 0; thisPin < Parameters-2; thisPin++)
{
for (int i=0; i<numCells - numAlloc; i++)
{
int color = random(0,6);
color[colors]++;
}
mysound1[color];
}
for (int thisPin = Parameters-2; thisPin < Parameters; thisPin++) {
randNumber1 = random(100, 200); // generates between 0 and 127
mysound1[thisPin]= randNumber1;
}
}
void loop() {
for (int thisPin = 0; thisPin < Parameters; thisPin++) {
Serial.println(mysound1[color]);
delay(2000);
}
}
【问题讨论】:
-
我发现的唯一明显问题是,在几个地方,您使用
color[colors]而不是colors[color]。color被声明为int,colors被声明为ints 的数组。 -
哦,很好,但是即使我改变了它。我希望状态
mysound1[colors];会将6 个数字推入该数组。我仍然收到此错误:数组下标的无效类型'int [8] [int [6]]'。我知道 Arduino 不喜欢我只是想把 6 个数字推到应该是 8 个数字的地方。但后来我想我在第一个 for 循环中通过声明这个来处理这个问题:for (int thisPin = 0; thisPin < Parameters-2; thisPin++)
标签: arrays for-loop random arduino arduino-c++