inpu只能輸入數字

方法一：input框僅可輸入數字

<input type="text" name="{{$field['field']}}" Oninput="value=value.replace(/[^\d]/g,'')" class="layui-input" value="" title="排序僅爲數字"/>

 方法二：通過改變input類型

<input type="number" name="{{$field['field']}}" class="layui-input" value="" title="排序僅爲數字"/>

方法三：input框僅可輸入數字且開頭不能爲0:

<input type="text" class="layui-input" name="{{$field['field']}}" value="" onkeyup='this.value=this.value.replace(/[^1-9]*$/,"")' onblur='this.value=this.value.replace(/^[0]+[0-9]*$/gi,"")' maxlength="5">