模板字符串

var str = `abcdef`
 console.log(str);

var str = `
     <tr>
         <td>令狐冲</td>
         <td>20</td>
         <td>独孤九剑</td>
     </tr>
     <tr>
         <td>任我行</td>
         <td>55</td>
         <td>吸星大法</td>
     </tr>
 `
 console.log(str);

var a = 10;
 // var str = ‘小明今年才‘+a+‘岁，就想谈女朋友‘;
 var str = `小明今年才${a}岁，就想谈女朋友`
 console.log(str);