Question

每次点击按钮时，如何将数字连接到字符串？如果我记录cConcate变量，您将看到第一个值是正确的，但在后续点击时，url拒绝更新。

var tNumber = 1;
var sSting = "http://www.test.com/";
var cConcate = sSting + tNumber
$("button").click(function(){
    tNumber++;
    console.log(cConcate);
    console.log(tNumber);
});

这是在线版本： http://codepen.io/vincentccw/pen/MwwRZG

Answer 1

在点击处理程序中进行连接，而不是仅执行一次：

var tNumber = 1;
var sString = "http://www.test.com/";
$("button").click(function(){
    var cConcate = sString + tNumber++;
    console.log(cConcate);
    console.log(tNumber);
});

Answer 2

将cConcate置于button click event内，因为它应该更新。将您的代码更改为

var tNumber = 1;
var sSting = "http://www.test.com/";
var cConcate = sSting;
$("button").click(function(){
  tNumber++;
  cConcate= cConcate + tNumber;
  console.log(cConcate);
  console.log(tNumber);
});

或者如果您只想附加一个数字：

var tNumber = 1;
var sSting = "http://www.test.com/";
$("button").click(function(){
  tNumber++;
  var cConcate= sSting + tNumber;
  console.log(cConcate);
  console.log(tNumber);
});

Answer 3

你可以这样做，

    var tNumber = 1;
    var sSting = "http://www.test.com/";

    $("button").click(function(){
        var cConcate = sSting + tNumber
        console.log(cConcate);
        console.log(tNumber);
        tNumber++;
    });

每次点击按钮时都会将数字连接到url？

3 个答案: