"adjustPosition" 
					:holdKeyboard="true"
					@blur="onBlur" 
					@focus="onFocus" 
					@confirm="onSend"
					confirmType="send" 
					maxlength="30"
					placeholder-class="input-placeholder"
					placeholder="跟主播说点什么..."
					type="text"
					
				/>点击键盘的发送 按钮触发两次发送