如何单击可编辑的内容div，然后单击span保留焦点

var editableDiv = document.getElementById("editableDiv");
editableDiv.addEventListener("click", function() {
  // 在这里添加处理逻辑
});

editableDiv.addEventListener("click", function(event) {
  var target = event.target;
  if (target.tagName.toLowerCase() === "span") {
    target.contentEditable = true;
    target.focus();
  }
});

editableDiv.addEventListener("blur", function(event) {
  var target = event.target;
  if (target.tagName.toLowerCase() === "span") {
    event.preventDefault();
    target.focus();
  }
});