Question

我正在尝试执行我的代码的情况1，但由于未发生的某些原因，我对JS还是陌生的，我使用w3 school使用switch语句，但由于某些原因，它将无法执行情况1，我什至删除了中断

let theGreeting = String(prompt("enter your name"));
console.log("hello " + theGreeting + " " + "how are you I hope well");
let theQuestion = Boolean(prompt("enter boolean value "));

switch (theQuestion) {
  case 0:
    theQuestion == false;
    console.log("it was" + theQuestion + "that is very good to hear that you were not sick ");
    break;

  case 1:
    theQuestion == true;
    console.log("sorry to hear that it is " + theQuestion + " " + "that you were very sick ");
    break;

};

let theNumber = Number(prompt("enter number"));
console.log("I am sorry to hear that I am surprised that the treatment was" +
    " " + theNumber * theNumber + " " + " dollars " + "thank god for insurance ");

Answer 1

它不会执行，因为您没有向变量返回任何内容。

使用boolean也不是很正确，就好像有人写了true或false以外的任何东西也没用。

改为使用while循环进行检查。另外，如果您只是使用该代码，请尝试使用var而不是let。

然后您将案例设为0或1，这是没有道理的，因为您希望是非。

尝试以下方法：

let theGreeting = String(prompt("enter your name"));
console.log("hello " + theGreeting + " " + "how are you I hope well");
let theQuestion = Boolean(prompt("enter boolean value "));

switch (theQuestion) {
case true:
theQuestion = false;
console.log("it was" + theQuestion + "that is very good to hear that you were 
not sick");
 break;

  case false:
 theQuestion = true;
 console.log("sorry to hear that it is " + theQuestion + " " + "that you were 
 very sick");
 break;

};

 let theNumber = Number(prompt("enter number"));
  console.log("I am sorry to hear that I am surprised that the treatment was" 
+ " " + theNumber * theNumber + " " + " dollars " + "thank god for 
insurance");

还有一个额外奖金提示，使用空格或制表符使您的代码缩进，但不仅为了我们，也为了您自己，都将其缩进。

祝你好运！

JavaScript switch语句未执行情况1

1 个答案: