~~~ /** * 检测一个字符在字符串中出现的次数 * @param str 字符串 * @param strSplit 字符 * @returns {number} 返回出现的次数 * * let strTest = 'sad44654blog5a1sd67as9dablog4s5d16zxc4sdweasjkblogwqepaskdkblogahseiuadbhjcibloguyeajzxkcabloguyiwezxc967' * countStr(strTest,'blog') * 6 */ function countStr(str, strSplit) { return str.split(strSplit).length - 1 } ~~~