刚启动java脚本，需要帮助运行两个脚本，似乎只有一个运行答案

【问题标题】：Just starting java script, need help running both scripts, only one seems to run刚启动java脚本，需要帮助运行两个脚本，似乎只有一个运行
【发布时间】：2017-09-08 09:06:17
【问题描述】：

需要帮助运行这两个脚本，似乎只有一个在运行，我得到一个名称，但它只是停止运行。帮助将不胜感激。我一直在使用 java 和 C++，所以这自然让我感到困惑。谢谢

<!doctype html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <script src="jstut.js"></script>

    <style type="text/css">
      body {font-size: 1.6em;}
      .hidden {display:none;}
      .show {display:inline !important;}
      button {
        border: 2px solid black; background: #E5E4E2;
        font-size: .5em; font-weight: bold; color: black;
        padding: .8em 2em;
        margin-top: .4em;
      }
    </style>
  </head>
  <body>
    <p id="sayHello"></p>

    <script> 
      var yourName = prompt("What is your name?");
      if(yourName!= null){
        document.getElementById("sayHello").innerHTML = "Hello " + yourName;
      }else{
        alert("Please enter your name correctly");
      }
    </script>

    <script> 
      var myAge = prompt("What is your age");
      if(myAge < 4){
        document.write ("You should be in preschool";
      }else if(my age > 4 && <18){
        document.write("You should be in public private school");
      }else if (my age >18 && <24){
        document.write("You should be in college");
      }
      else{ document.write(your in the work force now);}
    </script>
  </body>
</html>

【问题讨论】：

在浏览器中按 F12 并查看 Console，您会看到一个错误，告诉您这里缺少 )：("You should be in preschool";
学习使用一些工具来验证你的 JS 语法：stackoverflow.com/questions/2120093/…
另外，document.write(your in the work force now); 应该是 document.write("your in the work force now");
@Henry 从技术上讲，它应该是“you're 现在在工作中。”
@Albzi 很惊讶你没有指出技术上What is your age 缺少?

标签： javascript html

【解决方案1】：

您在此行错过了)：document.write ("You should be in preschool";

@Albzi、@Alex K. 和 @Henry 在 cmets 中还指出了其他一些错误。这些人帮了很多忙。

代码更改：

修复了此行中) 的问题：document.write ("You should be in preschool";
将if(my age > 4 && <18) 替换为if (myAge>4 && myAge<18)。下面的行也是如此。
将my age 替换为myAge
更正拼写

body {
  font-size: 1.6em;
}

.hidden {
  display: none;
}

.show {
  display: inline!important;
}

button {
  border: 2px solid black;
  background: #E5E4E2;
  font-size: .5em;
  font-weight: bold;
  color: black;
  padding: .8em 2em;
  margin-top: .4em;
}

<!doctype html>
<html lang="en">

<head>
  <meta charset="utf-8">
  <script src="jstut.js"></script>
</head>

<body>
  <p id="sayHello"></p>

  <script>
    var yourName = prompt("What is your name?");
    if (yourName != null) {
      document.getElementById("sayHello").innerHTML = "Hello " + yourName;
    } else {
      alert("Please enter your name correctly");
    }
  </script>

  <script>
    var myAge = prompt("What is your age?");
    if (myAge < 4) {
      document.write("You should be in preschool");
    } else if (myAge > 4 && myAge < 18) {
      document.write("You should be in public private school");
    } else if (myAge > 18 && myAge < 24) {
      document.write("You should be in college");
    } else {
      document.write("You're in the work force now");
    }
  </script>
</body>

</html>

【讨论】：