SStringUtil.ts 2.5 KB

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  1. /*
  2. * *********************************************************************************************************************
  3. *
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  19. * .:R888888I
  20. * .&888888I Copyright (c) 2009-2020. 博锐尚格科技股份有限公司
  21. * ~8888'
  22. * .!88~ All rights reserved.
  23. *
  24. * *********************************************************************************************************************
  25. */
  26. /**
  27. * 字符串工具类
  28. *
  29. * @author 郝洁 <haojie@persagy.com>
  30. */
  31. export class SStringUtil {
  32. /**
  33. * 数值转 16 进制字符串
  34. *
  35. * @param n 要转换的数值
  36. * @param len 转换后的长度(默认为 2)
  37. * @return 转换后的数据
  38. */
  39. static num2Hex(n: number, len: number = 2): string {
  40. let hex = "";
  41. let numStr: string[] = [
  42. "0",
  43. "1",
  44. "2",
  45. "3",
  46. "4",
  47. "5",
  48. "6",
  49. "7",
  50. "8",
  51. "9",
  52. "a",
  53. "b",
  54. "c",
  55. "d",
  56. "e",
  57. "f"
  58. ];
  59. while (len > 0) {
  60. hex = numStr[n & 0x0f] + hex;
  61. n = n >> 4;
  62. len--;
  63. }
  64. return hex;
  65. } // Function num2Hex()
  66. } // Class SStringUtil