const keyword = '關鍵字'; let str = '把關鍵字換成藍色'; const reg = new RegExp(`${keyword}`, 'g'); str = str.replace(reg, `<span style='color: #1B73E8;'>${keyword}</span>`);
// 插入div、span等 <div dangerouslySetInnerHTML={__html: str}></div>
效果展示:

React插入內容代碼: dangerouslySetInnerHTML = {__html: 修改完帶HTML代碼的字符串}
