iview表单验证 只能输入小数或者整数

{pattern:/^(([1-9]\d{0,3})|0)(\.\d{0,2})?$/},

:rules="[{ required: true, message: '最小分不能为空',},{ message: '最小分只能是数字', trigger:'change', pattern:/^(([1-9]\d{0,3})|0)(\.\d{0,2})?$/,}]"