Antd Form InputNumber带后缀 required显示问题

处理如下:

 		 <FormItem
            required
            label="采购时长"
          >
            <FormItem
              name="purchaseDuration"
              noStyle
              rules={
     [{
     required: true}]}
            >
              <InputNumber
                min={
     0}
                style={
     {
      width: '90%' }}
                placeholder="请输入"
              />
            </FormItem>
            （s）秒
          </FormItem>