How Thymeleaf judges that the displayed data is different according to the different values in the input

How Thymeleaf judges that the displayed data is different according to the different values ​​in the input

   <div class="layui-form-item">
            <label class="layui-form-label">处理结果</label>
            <div class="layui-input-block">
                <input type="text"  disabled="disabled" th:if="${task.processing_results}=='0'" value="送医" style="width:80%" class="layui-input">
                <input type="text"  disabled="disabled" th:if="${task.processing_results}=='1'" value="自行处理完毕" style="width:80%" class="layui-input">
                <input type="text"  disabled="disabled" th:if="${task.processing_results}=='2'" value="其他" style="width:80%" class="layui-input">
            </div>
        </div>