因此,我仅使用p5.js构建一个计算器。我已经正确显示了数字,但我不知道如何使其正常运行,例如,我先单击5,然后是小腹,然后单击5。然后显示1。有人知道如何进行此操作。非常感谢您的帮助。非常感谢您想要帮助的人。
let number = 0;
function setup() {
createCanvas(400, 400);
let one = createButton('1');
one.mousePressed(clickedOne);
let two = createButton('2');
two.mousePressed(clickedTwo);
let three = createButton('3');
three.mousePressed(clickedThree);
let four = createButton('4');
four.mousePressed(clickedFour);
let five = createButton('5');
five.mousePressed(clickedFive);
let six = createButton('6');
six.mousePressed(clickedSix);
let seven = createButton('7');
seven.mousePressed(clickedSeven);
let eight = createButton('8');
eight.mousePressed(clickedEight);
let nine = createButton('9');
nine.mousePressed(clickedNine);
let zero = createButton('0');
zero.mousePressed(clickedZero);
let equals = createButton('=');
let clear = createButton('AC');
let divide = createButton('÷');
let multiply = createButton('x');
let add = createButton('+');
let minus = createButton('-');
one.position(100, 150);
one.size(45, 45);
two.position(144, 150);
two.size(45, 45);
four.position(100, 194);
four.size(45, 45);
six.position(188, 194);
six.size(45, 45);
three.position(188, 150);
three.size(45, 45);
five.position(144, 194);
five.size(45, 45);
seven.position(100, 238);
seven.size(45, 45);
eight.position(144, 238);
eight.size(45, 45);
nine.position(188, 238);
nine.size(45, 45);
zero.position(100, 282);
zero.size(89, 45);
equals.position(188, 282);
equals.size(45, 45);
divide.position(232, 150);
divide.size(45, 45);
multiply.position(232, 194);
multiply.size(45, 45);
add.position(232, 238);
add.size(45, 45);
minus.position(232, 282);
minus.size(45, 45);
clear.position(100, 106);
clear.size(177, 45);
}
function clickedOne(){
number = number * 10 + 1;
}
function clickedTwo(){
number = number * 10 + 2;
}
function clickedThree(){
number = number * 10 + 3;
}
function clickedFour(){
number = number * 10 + 4;
}
function clickedFive(){
number = number * 10 + 5;
}
function clickedSix(){
number = number * 10 + 6;
}
function clickedSeven(){
number = number * 10 + 7;
}
function clickedEight(){
number = number * 10 + 8;
}
function clickedNine(){
number = number * 10 + 9;
}
function clickedZero(){
number = numer * 10 + 0;
}
function draw() {
background(220);
noStroke();
fill(20, 255, 255, 30);
rect(100, 53, 177, 54, 5);
strokeWeight(6);
stroke(0);
noFill();
rect(97, 50, 183, 280, 5);
strokeWeight(1);
stroke(0);
fill(0);
textSize(25);
text(number, 110, 100);
}
您必须添加2个新变量number1
和operation
:
let number = 0;
let operation = "";
并且您必须为操作添加新的回调(例如,[[+为clickedAdd
),<< ==>为clickedEquals
。单击操作时(+
-,...),然后通过number1
设置number
,将number
设置为0。此外,设置operation
。例如:function clickedAdd(){
number1 = number;
number = 0;
operation = "+";
}
function clickedMinus(){
number1 = number;
number = 0;
operation = "-";
}
number1
中,并且number
设置为0,因此可以输入下一个编号。当=
时,必须执行适当的operation
。例如:
function clickedEquals(){
if (operation == "+") {
number = number1 + number;
} else if (operation == "-") {
number = number1 - number;
} if (operation == "x") {
// [...]
}
// [...]
}