//模板字符串,三种符号 //反引号,美元符号,大括号 let str1="javascript"; let str2="fun"; console.log(`I am writing ${str1}`); console.log(`${str1} is ${str2}`); //大括号内还可以进行运算 console.log(`1+1 is ${1+1}`); console.log(`拼接字符是${str1+" is "+str2} `);