可编辑div contentEditable=“true“ 设置光标至末尾

var el = document.getElementById(‘phoneNumber’);
//el=el[0]; //jquery 对象转dom对象
el.focus();
if($.support.msie){
var range = document.selection.createRange();
this.last = range;
range.moveToElementText(el);
range.select();
document.selection.empty(); //取消选中
} else {
var range = document.createRange();
range.selectNodeContents(el);
range.collapse(false);
var sel = window.getSelection();
sel.removeAllRanges();
sel.addRange(range);
}