练习6_判断星期.html 1.6 KB

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  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4. <meta charset="UTF-8">
  5. <meta name="viewport" content="width=device-width, initial-scale=1.0">
  6. <title>Document</title>
  7. </head>
  8. <body>
  9. <script>
  10. // 文本框输入的内容 是字符串类型
  11. var week = prompt("请输入星期");
  12. week = parseInt(week);
  13. switch(week){
  14. case 0:
  15. console.log("星期日");
  16. break;
  17. case 1:
  18. console.log("星期一");
  19. break;
  20. case 2:
  21. console.log("星期二");
  22. break;
  23. case 3:
  24. console.log("星期三");
  25. break;
  26. case 4:
  27. console.log("星期四");
  28. break;
  29. case 5:
  30. console.log("星期五");
  31. break;
  32. case 6:
  33. console.log("星期六");
  34. break;
  35. default:
  36. console.log("输入错误");
  37. }
  38. if(week == 0){
  39. console.log("星期日");
  40. }else if(week == 1){
  41. console.log("星期一");
  42. }else if(week == 2){
  43. console.log("星期二");
  44. }else if(week == 3){
  45. console.log("星期三");
  46. }else if(week == 4){
  47. console.log("星期四");
  48. }else if(week == 5){
  49. console.log("星期五");
  50. }else if(week == 6){
  51. console.log("星期六");
  52. }else{
  53. console.log("输入错误");
  54. }
  55. </script>
  56. </body>
  57. </html>