<inputv-model="phone"placeholder="请输入手机号码"type="text"ref="cardInput"maxlength="13"@input="formatCardNumber"id="bankAccountNo"/>formatCardNumber(){let that = this  let  elem = document.getElementById('bankAccountNo');let patten = /\D/glet  curpos = elem.selectionStart;let  old_value = elem.value;  that.phone = this.paddingSpace(elem.value.replace(patten, ""));if (old_value[curpos - 1] == " ") {curpos += -1;} else {var old_cursor = old_value.slice(0, curpos);var old_cursor_spaced = this.paddingSpace(old_cursor.replace(patten, ""));curpos += old_cursor_spaced.length - old_cursor.length;}setTimeout(function () {elem.focus();elem.setSelectionRange(curpos, curpos);}, 0);},// 格式化空格paddingSpace(str) {//  return str.replace(/\s/,'').replace(/(^\d{3})(?=\d)/g,"$1 ").replace(/(\d{4})(?=\d)/g,"$1 ") //手机号码、、//银行卡号return str.replace(/\s/,'').replace(/(\d{4})(?=\d)/g,"$1 ");},