我试图在第 5 个零之后增加 1,但是当我单击向上按钮时,它只显示 1,而不是 000001。
<div class="input-group spinner">
<input type="text" class="form-control" value="000001">
<div class="input-group-btn-vertical">
<button class="btn btn-default" type="button"><i class="fa fa-caret-up"></i></button>
<button class="btn btn-default" type="button"><i class="fa fa-caret-down"></i></button>
</div>
</div>
jQuery
<script>
(function ($) {
$('.spinner .btn:first-of-type').on('click', function() {
$('.spinner input').val( parseInt($('.spinner input').val(), 10) + 1);
});
$('.spinner .btn:last-of-type').on('click', function() {
$('.spinner input').val( parseInt($('.spinner input').val(), 10) - 1);
});
})(jQuery);
</script>
最佳答案
尝试这样
var noOfZer = 6; // Total length of number, for you number is 6
var num=parseInt($('.spinner input').val(), 10) - 1;
console.log(String('000000' + num).slice(-1 * noOfZer));
关于jquery - 如何在第5个零之后加1?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/42336996/