radix=radix||0 let tmp=arr.map(item=> `&#${(radix?'x'+item.charCodeAt(0).toString(16):item.charCodeAt(0))};`).join('') console.log(`'${str}' 转实体为 '${tmp}'`) return tmp function entityToString(entity){ let entities=entity.split(';') entities.pop() let tmp=entities.map(item=>String.fromCharCode( item[2]==='x'?parseInt(item.slice(3),16):parseInt(item.slice(2)))).join('') console.log(`'${entity}' 转字符串为 '${tmp}'`) return tmp