小编Jan*_*uka的帖子

我正在尝试获取input文本值并将其存储在名为input中的变量中ionic。但是我尝试并失败了。谁能告诉我我做错了什么吗？

这是我的 HTML

  <ion-content>
  <ion-list>
    <ion-item> 
        <ion-label stacked>display</ion-label>
      <ion-input type="text" text-right id="input" ></ion-input>
    </ion-item>    
  </ion-list>
  </ion-content>

这是我home.ts的离子

import { Component } from '@angular/core';
import { NavController } from 'ionic-angular';

@Component({
  selector: 'page-home',
  templateUrl: 'home.html'
})
export class HomePage {

  constructor(public navCtrl: NavController) {
    var input=document.getElementById('input').nodeValue;
    document.getElementById('seven').innerHTML=input;
  }

}

谁能帮帮我吗？

我有这样bootstrap html一个navbar

<!--Navbar-->
    <nav class="navbar navbar-expand-lg navbar-dark bg-dark">

        <!-- Navbar brand --> 

        <img class="logo" alt="Brand" src="images/1.png">
        <a class="navbar-brand" href="Homepage.jsp">Car Surgeons Vehicle Service Centre</a>
        <!-- Collapse button -->
        <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#basicExampleNav" aria-controls="basicExampleNav"
                aria-expanded="false" aria-label="Toggle navigation">
            <span class="navbar-toggler-icon"></span>
        </button>

        <!-- Collapsible content -->
        <div class="collapse navbar-collapse" id="basicExampleNav">

            <!-- Links -->
            <ul class="navbar-nav ml-auto">
                <li class="nav-item active">
                    <a class="nav-link" href="Homepage.jsp">Home
                        <span class="sr-only">(current)</span>
                    </a>
                </li>
                <li class="nav-item">
                    <a class="nav-link" href="AboutUs.jsp">About Us</a>
                </li>
                <li class="nav-item dropdown">
                    <a class=" nav-link dropdown-toggle" …

如果这个问题看起来很傻,我真的很抱歉.但是我一直在努力检查我的数据库username并password在数据库中匹配我在html页面中输入的内容...这是我的登录表单...

<form method="POST" action="Dashboard/Dashboard.php">

    <div class="form-group md-form">
        <!--<input type="email" class="form-control" id="email" value="" placeholder="Enter email address">-->
        <i class="fa fa-user prefix grey-text"></i>
        <input name="username" id="username" type="text" class="form-control" required>
        <label for="defaultForm-email">Username</label>
    </div>
    <div class="form-group md-form">
        <!--<input type="password" class="form-control" id="password" value="" placeholder="Enter password">-->
        <i class="fa fa-lock prefix grey-text"></i>
        <input name="password" id="password" type="password"  class="form-control" required>
        <label for="defaultForm-pass">Your password</label>
    </div>
    <div class="text-center">
        <button type="reset" class="btn btn-amber btn-sm"><strong>Reset</strong></button>
        <input type="submit" name="submit" id="submit" class="btn btn-green btn-sm" value="Sign in">                                           
    </div>

</form>

这是php …