vue页面内使用
<el-input:disabled="inputdisabled"ref="inputRef"id="text-input"v-model="messinput"@keydown.native="Keydown"placeholder="请输入您的问题，可通过Ctrl+回车换行"type="textarea"resize="none":autosize="{ minRows: 1, maxRows: 4 }"></el-input>// 回车发送（shift+回车换行，浏览器默认,ctrl+回车换行）Keydown (event) {// 回车发送if (!event.ctrlKey && !event.shiftKey && event.keyCode == 13) {event.cancelBubble = true; //ie阻止冒泡行为event.stopPropagation();//Firefox阻止冒泡行为event.preventDefault(); //取消事件的默认动作*换行//以下处理发送消息代码if (!this.BtnDisabled) {this.sub()}} else if (event.key === 'Enter' && event.shiftKey) {// shift+回车换行禁用event.cancelBubble = true; //ie阻止冒泡行为event.stopPropagation();//Firefox阻止冒泡行为event.preventDefault(); //取消事件的默认动作*换行} else if (event.key === 'Enter' && event.ctrlKey) {// ctrl+回车换行event.preventDefault(); // 阻止默认的换行行为const selectionStart = event.target.selectionStart; // 获取光标位置this.messinput = this.messinput.substring(0, selectionStart) + '\n' + this.messinput.substring(selectionStart);// 重设光标位置this.$nextTick(() => {event.target.selectionStart = selectionStart + 1;event.target.selectionEnd = selectionStart + 1;});}},js原生
<textarea class="custom" id='text-area' placeholder="输入消息..." value='' rows=2 ></textarea>document.getElementById("text-area").addEventListener("keydown", function (event) {// 回车发送if (!event.ctrlKey && !event.shiftKey && event.keyCode == 13) {event.cancelBubble = true; //ie阻止冒泡行为event.stopPropagation(); //Firefox阻止冒泡行为event.preventDefault(); //取消事件的默认动作*换行//以下处理发送消息代码if (!messageInput.disabled) {sendMessage();}} else if (event.key === "Enter" && event.shiftKey) {// shift+回车换行禁用event.cancelBubble = true; //ie阻止冒泡行为event.stopPropagation(); //Firefox阻止冒泡行为event.preventDefault(); //取消事件的默认动作*换行} else if (event.key === "Enter" && event.ctrlKey) {// ctrl+回车换行event.preventDefault(); // 阻止默认的换行行为let textarea = document.getElementById("text-area");let cursorPos = textarea.selectionStart;let v = textarea.value;let textBefore = v.substring(0, cursorPos);let textAfter = v.substring(cursorPos, v.length);textarea.value = textBefore + "\n" + textAfter;textarea.selectionStart = cursorPos + 1;textarea.selectionEnd = cursorPos + 1;}});
