摘要:
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摘要:
银行卡号的输入,每四位加一个空格,有2种方式第一种:$("#test").keyup(function () { var card = $("#test").val().replace(/\D/g, ''); var ncard = ""; for (var n = 0; n < card.length; n = n + 4) { ncard += card.substring(n, n + 4) + " "; } ncard = ncard.replace(/\s*$/g, ' 阅读全文