鼠标响应事件的基本结构为

void setup() {

}

void draw() {

}

void mousePressed() {

}

void mouseMoved() {

}

void mouseDragged() {

}

mousePressed() 函数用在鼠标被按下的响应事件中,如

void setup() {

  sieze(300,300);

  smooth();

  background(100);

}

 

void draw() {

}

 

void mousePressed() {

  stroke(0);

  fill(255,255,0);

  ellipse(mouseX,mouseY,25,25);

}

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