疫情时期出近扫二维码用了几天现在显示信息不完整不能通过咋办呢?
Posted
tags:
篇首语:本文由小常识网(cha138.com)小编为大家整理,主要介绍了疫情时期出近扫二维码用了几天现在显示信息不完整不能通过咋办呢?相关的知识,希望对你有一定的参考价值。
参考技术A 没办法。因为微信行程卡服务使用的是基站数据,为了确保通信连续,实现覆盖无盲区,行政区划交界处的两地基站信号可能会交叉覆盖,造成在手机里数据查询的异常,另外在一个城市的驻留时间未超过4小时,是不会被记录的。我的卡片查找器遇到了逻辑问题,卡了几天
【中文标题】我的卡片查找器遇到了逻辑问题,卡了几天【英文标题】:I've ran into a logical problem with my card finder, been stuck for some days 【发布时间】:2021-06-23 12:53:28 【问题描述】:我是 Javascript 和一般编程的新手。我做了一些简单的项目,现在我正在研究卡片查找器。用户输入他们有多少张卡,然后输入他们还有多少张卡,系统显示丢失的一张。 (例如,我总共有 5 张牌。我剩下的牌是 1、2、4、5。缺少的牌是 3)。在用户插入剩余的卡(最后一张)之前一切正常,然后它会提醒一个非常大的负数或正数。
// Declaring the variables required to find the missing card
var amountOfCards, numOfCards, result, cards, missingCard, remainingCards, resultOfMissingCard;
// Assigning result and cards variables
result = 0;
cards = 1;
// Asking the user how many cards they have
amountOfCards = prompt('How many cards do you have?');
// Changing the number of cards or numOfCards to an integer
numOfCards = parseInt(amountOfCards);
// Finding the missing card equation
missingCard = (amountOfCards*(amountOfCards+1))/2;
// While loop
while (cards < numOfCards)
remainingCards = prompt('What card do you have remaining?') // This line is for the user to enter their remaining cards
cards = parseInt(remainingCards);
result = result + parseInt(remainingCards);
cards++;
// Finding the missing card
resultOfMissingCard = result - missingCard;
// Alerting the user of their missing card
alert('Your missing card is ' + resultOfMissingCard);
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<script src="./findingthemissingcard.js"></script></body>
</html>
如果你能帮助我,我很感激你们。再说一次,我不是专业人士。真的很新。我认为有问题:
resultOfMissingCard = 结果 - missingCard
【问题讨论】:
【参考方案1】:这样试试吧。
var amountOfCards, numOfCards, result, cards, missingCard, remainingCards, resultOfMissingCard;
result = 0;
cards = 1;
amountOfCards = prompt('How many cards do you have?');
numOfCards = parseInt(amountOfCards);
missingCard = (numOfCards*(numOfCards+1))/2;
while (cards <= numOfCards)
remainingCards = prompt('What card do you have remaining?')
cards = parseInt(remainingCards);
result = result + parseInt(remainingCards);
cards++;
resultOfMissingCard = missingCard - result;
alert('Your missing card is ' + resultOfMissingCard);
您忘记使用 numOfCards
,它是从等式中的字符串转换的 int 来查找丢失的卡片,而不是使用用户输入的实际字符串。而且在while循环中你必须比较cards <= numOfCards
。最后你只需要从missingCard中减去结果。
【讨论】:
【参考方案2】:即使您已经得到答案,我在计算上也有所改进,并且可以按任意顺序输入您仍然拥有的卡片。如您所见,该脚本也短得多。
var stillgot = [], real = 0, cards = prompt("how many cards did you have")
for (var i = 0; i < cards - 1; i++)
stillgot.push(parseInt(prompt("Enter a card you still have")))
var expected = (parseInt(cards)*(parseInt(cards)+1))/2
for(var i = 0; i < stillgot.length; i++)
real = (real + parseInt(stillgot[i]))
var res = (expected - real)
alert("You are missing card " + res)
【讨论】:
以上是关于疫情时期出近扫二维码用了几天现在显示信息不完整不能通过咋办呢?的主要内容,如果未能解决你的问题,请参考以下文章
我的myeclipse2017破解后用了几天就成这样了,这是啥意思,哪位大神告