如何在javascript函数中编写构建html中的脚本标记？

function buildScriptTag(scriptSrc) {
  var scriptTag = '<script src="' + scriptSrc + '"></script>';
  return scriptTag;
}

// 调用函数并将生成的脚本标记插入到页面中
var scriptSrc = 'https://example.com/script.js';
var scriptTag = buildScriptTag(scriptSrc);
document.body.innerHTML += scriptTag;

function buildScriptTag(scriptSrc) {
  var scriptTag = document.createElement('script');
  scriptTag.src = scriptSrc;
  return scriptTag;
}

// 调用函数并将生成的脚本标记插入到页面中
var scriptSrc = 'https://example.com/script.js';
var scriptTag = buildScriptTag(scriptSrc);
document.body.appendChild(scriptTag);

function buildScriptTag(scriptSrc) {
  var scriptTag = '<script src="' + scriptSrc + '"></script>';
  return scriptTag;
}

// 调用函数并将生成的脚本标记插入到页面中
var scriptSrc = 'https://example.com/script.js';
var scriptTag = buildScriptTag(scriptSrc);
document.body.innerHTML += scriptTag;