js实现输入框搜索提示功能

#kw {
  width: 286px;
  height: 30px;
  padding: 0 5px;
  line-height: 30px;
  font-size: 16px;
  outline: none;
  border: solid #87a900 2px;
}
#append {
  width: 296px;
  border: solid #87a900 2px;
  border-top: 0;
  display: none;
}
.item {
  padding: 3px 5px;
  cursor: pointer;
}
.item:hover{
  background: #87a900;
  color: #fff;
}

<div id="content">
  <input id="kw" onKeyup="getContent(this);" placeholder="你好" />
  <div id="append"></div>
</div>

var data = [
  ‘你好，我是Michael‘,
  ‘你是谁‘,
  ‘你最好啦‘,
  ‘你最珍贵‘,
  ‘你是我最好的朋友‘,
  ‘你画我猜‘,
  ‘你是笨蛋‘,
  ‘你懂得‘,
  ‘你为我着迷‘,
  ‘你是我的眼‘
]

var oInput = document.getElementById(‘kw‘)
var append = document.getElementById(‘append‘)

function getContent(obj) {
  var kw = obj.value.trim()
  if (kw == ‘‘) {
    append.style.display = ‘none‘
    append.innerHTML = ‘‘
    return false
  }
  var html = ‘‘
  for (var i = 0; i < data.length; i++) {
    if (data[i].indexOf(kw) >= 0) {
      html =
        html +
        "<div class=‘item‘ onClick=‘getCon(this);‘>" +
        data[i] +
        ‘</div>‘
    }
  }
  if (html != ‘‘) {
    append.style.display = ‘block‘
    append.innerHTML = html
  }
}

function getCon(obj) {
  var value = obj.innerText
  oInput.value = value
  append.style.display = ‘none‘
  append.innerHTML = ‘‘
}