使用vanilla js:

//for one element: 
document.querySelector('.myCheckBox').checked = true  //will select the first matched element
document.querySelector('.myCheckBox').checked = false//will unselect the first matched element

//for multiple elements:
for (const checkbox of document.querySelectorAll('.myCheckBox')) {
//iterating over all matched elements

checkbox.checked = true //for selection
checkbox.checked = false //for unselection
}

对于单个检查，请尝试

myCheckBox.checked = 1 <input type="checkbox" id="myCheckBox">给她打电话

对于多重尝试

document.querySelectorAll(“.imChecked”)。forEach (c = > c.checked = 1) 买酒:<input type="checkbox" class="imChecked"><br> 播放流畅的爵士音乐:<input type="checkbox"><br> 剃须:<input type="checkbox" class="imChecked"><br>

<script type="text/javascript">
    $(document).ready(function () {
        $('.selecctall').click(function (event) {
            if (this.checked) {
                $('.checkbox1').each(function () {
                    this.checked = true;
                });
            } else {
                $('.checkbox1').each(function () {
                    this.checked = false;
                });
            }
        });

    });

</script>

我们可以这样选中一个粒子复选框，

$('id of the checkbox')[0].checked = true

然后取消检查，

$('id of the checkbox')[0].checked = false

我同意目前的答案，但在我的情况下，它不起作用，我希望这段代码在未来能帮助到某人:

// check
$('#checkbox_id').click()

检查:

document.getElementById("id-of-checkbox").checked = true;

取消:

document.getElementById("id-of-checkbox").checked = false;