date-formart-common.js 2.3 KB

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  1. function Format(now,mask) {
  2. //now = new Date(now); 如果 now 是字符串就把这里解注掉
  3. var d = now;
  4. var zeroize = function (value, length)
  5. {
  6. if (!length) length = 2;
  7. value = String(value);
  8. for (var i = 0, zeros = ''; i < (length - value.length); i++)
  9. {
  10. zeros += '0';
  11. }
  12. return zeros + value;
  13. };
  14. return mask.replace(/"[^"]*"|'[^']*'|\b(?:d{1,4}|m{1,4}|yy(?:yy)?|([hHMstT])\1?|[lLZ])\b/g, function ($0)
  15. {
  16. switch ($0)
  17. {
  18. case 'd': return d.getDate();
  19. case 'dd': return zeroize(d.getDate());
  20. case 'ddd': return ['Sun', 'Mon', 'Tue', 'Wed', 'Thr', 'Fri', 'Sat'][d.getDay()];
  21. case 'dddd': return ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'][d.getDay()];
  22. case 'M': return d.getMonth() + 1;
  23. case 'MM': return zeroize(d.getMonth() + 1);
  24. case 'MMM': return ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'][d.getMonth()];
  25. case 'MMMM': return ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'][d.getMonth()];
  26. case 'yy': return String(d.getFullYear()).substr(2);
  27. case 'yyyy': return d.getFullYear();
  28. case 'h': return d.getHours() % 12 || 12;
  29. case 'hh': return zeroize(d.getHours() % 12 || 12);
  30. case 'H': return d.getHours();
  31. case 'HH': return zeroize(d.getHours());
  32. case 'm': return d.getMinutes();
  33. case 'mm': return zeroize(d.getMinutes());
  34. case 's': return d.getSeconds();
  35. case 'ss': return zeroize(d.getSeconds());
  36. case 'l': return zeroize(d.getMilliseconds(), 3);
  37. case 'L': var m = d.getMilliseconds();
  38. if (m > 99) m = Math.round(m / 10);
  39. return zeroize(m);
  40. case 'tt': return d.getHours() < 12 ? 'am' : 'pm';
  41. case 'TT': return d.getHours() < 12 ? 'AM' : 'PM';
  42. case 'Z': return d.toUTCString().match(/[A-Z]+$/);
  43. // Return quoted strings with the surrounding quotes removed
  44. default: return $0.substr(1, $0.length - 2);
  45. }
  46. });
  47. }