| <script> | |
| var a = 4; | |
| var b = 5; | |
| //如果a<b输出a-b的结果 否则输出b-a的结果 | |
| var c = (a < b) ? (a - b) : (b - a); | |
| console.log(c); | |
| var age = 20; | |
| //如果年龄满18岁就输出成年人，否则输出未成年 | |
| var age = 2; | |
| var d = (age >= 18)?‘成年人‘:‘未成年‘; | |
| console.log(d); | |
| </script> |
原文：https://www.cnblogs.com/zhangao/p/9796862.html