大家好，我正在尝试使用jquery复制textbox值，但我不想使用add on插件，这里是我的代码
<div class="form-group col-lg-4 col-md-4 col-sm-12 col-xs-12">
<input type="text" id="visor_node_token" name="view" value="Hello World">
</div>
<input type="button" name="view" value="Copy" class="btn btn-primary" onclick="copy_node_token()" />
function copy_node_token()
{
var node = $("#visor_node_token").val();
$(node).select();
document.execCommand("Copy");
}`
我无法复制文本值。请帮助我
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<!DOCTYPE html>
<style>
#t {
width: 1px
height: 1px
border: none
}
#t:focus {
outline: none
}
</style>
<script>
function copy(text) {
var t = document.getElementById('t')
t.innerHTML = text
t.select()
try {
var successful = document.execCommand('copy')
var msg = successful ? 'successfully' : 'unsuccessfully'
console.log('text coppied ' + msg)
} catch (err) {
console.log('Unable to copy text')
}
t.innerHTML = ''
}
</script>
<textarea id=t></textarea>
<button onclick="copy('hello world')">
Click me
</button>