// 获取<p>javascript</p>节点:
var js = document.querySelector("#test-js");
// 修改文本为JavaScript:
js.innerText = "JavaScript";
// 修改CSS为: color: #ff0000, font-weight: bold
js.style.color = "#ff0000";
js.style.fontWeight = "bold";
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// 获取<p>javascript</p>节点:
var js = document.querySelector("#test-js");
// 修改文本为JavaScript:
js.innerText = "JavaScript";
// 修改CSS为: color: #ff0000, font-weight: bold
js.style.color = "#ff0000";
js.style.fontWeight = "bold";