【发布时间】:2020-02-14 09:59:36
【问题描述】:
我正在尝试获取用户输入并将其显示给用户,但在用户输入某些内容后它会不断重置,例如从 1000 开始,然后输入 10 现金,它会出现 990,但是在您再次输入并输入 20 之后,它不会保存您输入的 990,而是重新开始并输出 980
你可以在这里看到我的意思
https://codepen.io/scottajames/pen/mddreXz
// Hides everything in the Content-2 Div-
document.getElementById("Content-2").hidden = true;
// Unhides everything in the content-2 div and hides everything in the content-1 div and saves the input of the monthly id
function FirstButton() {
var a = document.getElementById("Monthly").value;
document.getElementById("Monthly-Amount").innerHTML = a;
document.getElementById("Content-2").hidden = false;
document.getElementById("Content-1").hidden = true;
}
// adds the content-2 inputs together and takes away the price from the total
function SecondButton() {
var b = document.getElementById("Item").value;
var c = document.getElementById("Price").value;
document.getElementById("Item-Price").innerHTML = b + ' ' + c;
var d = document.getElementById("Monthly").value;
document.getElementById("Monthly-Amount").innerHTML = d - c;
}
body {
background: #34EBC6;
}
#Content {
margin: 0 auto;
position: relative;
top: 200px;
width: 500px;
}
input {
width: 350px;
height: 60px;
outline: none;
font-size: 24px;
padding-left: 30px;
display: inline-block;
border-radius: 5px;
border: none;
background: #0e8b72;
color: white;
}
::placeholder {
color: white;
}
button {
position: relative;
height: 60px;
width: 100px;
font-size: 25px;
border-radius: 5px;
border: none;
color: white;
background: #0e8b72;
}
#Content-1 h1 {
position: relative;
left: 100px;
color: white;
font-size: 25px;
font-family: sans-serif;
font-weight: 400;
}
#Content-2 h1 {
color: white;
font-size: 25px;
font-family: sans-serif;
font-weight: 400;
}
#Monthly-Amount {
position: relative;
top: -10px;
left: 150px;
font-size: 40px;
font-family: sans-serif;
color: white;
font-weight: 400;
}
#Item-Price {
position: relative;
top: 50px;
border-top: 1px solid black;
padding-top: 25px;
padding-left: 25px;
}
<div id="Content">
<div id="Content-1">
<h1>Monthly Budget </h1><input type="text" id="Monthly" placeholder="0.00" required>
<button id="Button-1" onclick="FirstButton()">Next</button>
</div>
<h1 id="Monthly-Amount"></h1>
<div id="Content-2">
<h1>Item: </h1><input type="text" id="Item" placeholder="Item" required>
<h1>Price: </h1><input type="text" id="Price" placeholder="Price" required>
<button id="Button-2" onclick="SecondButton()">Next</button>
<h1 id="Item-Price"></h1>
</div>
</div>
【问题讨论】:
-
我在这里给你做了一个sn-p
-
我不认为样式表对于这个问题是必要的,它只是让你的 sn-p 看起来很难阅读。
标签: javascript html function var