//字符串var day="dd";switch (day){case "dd": x="day it\'s dd"; break;case "ff": x="day it\'s ff"; break;default: x="day is default";} 输出 "day it\'s dd" 相关文章： 2022-12-23 2021-09-14 2022-02-12 2021-09-04 2022-12-23 2022-02-07