问Java/处理循环中的mousePressed不起作用

EN

//draw() func
public void draw() {

    for (int i = 0; i < 10000; i++) {    //to simulate a while loop
        //do something, like run some other functions that create the buttons
        checkmouse();
    }
}

//checkmouse function
public void checkmouse() {

    if (mousePressed) {
        System.out.println("x");
    }
}

boolean esc = false;
while (!esc) {
    if (mousePressed) {
        System.out.println("x");
        esc = true;
    }
}