预期的声明或声明

Question

function resp (){
  if (distance<0);{
var para = document.createElement("p");
    var node = document.createTextNode("Yes");
    para.appendChild(node);
    var element = document.getElementById("inda");
    element.appendChild(para);}
else{
var para = document.createElement("p");
    var node = document.createTextNode("No, time left:");
    para.appendChild(node);
    var element = document.getElementById("inda");
    element.appendChild(para);}  
}

为什么会给我错误：声明或声明预期

Answer 1

{
    direction = Vector2.zero;

    if (Input.GetKey(KeyCode.W))
    {
        direction += Vector2.up;
        animator.SetBool("isRunning", true);
    }
    else if (Input.GetKey(KeyCode.A))
    {
        direction += Vector2.left;
        animator.SetBool("isRunning", true);
    }
    else if (Input.GetKey(KeyCode.S))
    {
        direction += Vector2.down;
        animator.SetBool("isRunning", true);
    }
    else if (Input.GetKey(KeyCode.D))
    {
        direction += Vector2.right;
        animator.SetBool("isRunning", true);
    }
    else 
    {
        animator.SetBool("isRunning", false);
    }
}

->

if (distance<0);{

如果您具有诸如webstorm或Visual Studio代码之类的想法，则更容易发现此类问题。

您的代码采用精美印刷的形式：

if (distance<0) {

少量重构后的代码：

function resp() {
    if (distance < 0) {
        var para = document.createElement("p");
        var node = document.createTextNode("Yes");
        para.appendChild(node);
        var element = document.getElementById("inda");
        element.appendChild(para);
    } else {
        var para = document.createElement("p");
        var node = document.createTextNode("No, time left:");
        para.appendChild(node);
        var element = document.getElementById("inda");
        element.appendChild(para);
    }
}