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日期类2
1: using System;
2: using System.Collections.Generic;
3: using System.Linq;
4: using System.Text;
5: 6: namespace AkDTH.Common
7: {8: /// <summary>
9: /// 时间字符串帮助类
10: /// author:Andrew.He
11: /// 生成时间格式：
12: /// 默认返回完整格式 yyyy-MM-dd HH:mm:ss
13: /// YY 返回年月日时分秒 yyyy-MM-dd HH:mm:ss
14: /// HH 返回年月日时分秒 yyyy-MM-dd HH:mm:ss
15: /// hh 返回年月日时分秒 yyyy-MM-dd hh:mm:ss
16: /// yM 返回年月 yyyy-MM
17: /// Md 返回月日 MM-dd
18: /// yMd 返回年月日 yyyy-MM-dd
19: /// yHm 返回年月日时分 yyyy-MM-dd HH:mm
20: /// yhm 返回年月日时分 yyyy-MM-dd hh:mm
21: /// Hms 返回时分秒 HH:mm:ss
22: /// hms 返回时分秒 hh:mm:ss
23: /// Hm 返回时分 HH:mm
24: /// hm 返回时分 hh:mm
25: /// y:yyyy 返回年 yyyy
26: /// M:MM 返回月 MM
27: /// d:dd 返回日 dd
28: /// h:hh 返回时 hh
29: /// H:HH 返回时 HH
30: /// m:mm 返回分 mm
31: /// s:ss 返回秒 ss
32: /// </summary>
33: public class DateTimeHelper
34: { 35: 36: #region GetDateTimeString 返回当前时间的格式化字符串
37: /// <summary>
38: /// 返回当前时间的格式化字符串
39: /// </summary>
40: /// <param name="format">格式化字符串类型</param>
41: /// <param name="split1">年月日连接字符串</param>
42: /// <param name="split2">时分秒连接字符串</param>
43: /// <returns></returns>
44: public static string GetDateTimeString(TimeFormat format =TimeFormat.other, string split1 = "-", string split2 = ":")
45: {46: return GetDateTimeString(DateTime.Now,format,split1,split2);
47: }48: #endregion
49: 50: #region GetDateTimeString 返回时间的格式化字符串
51: /// <summary>
52: /// 返回时间的格式化字符串
53: /// </summary>
54: /// <param name="dt">要格式化的时间</param>
55: /// <param name="format">格式化字符串类型</param>
56: /// <param name="split1">年月日连接字符串</param>
57: /// <param name="split2">时分秒连接字符串</param>
58: /// <returns></returns>
59: public static string GetDateTimeString(DateTime dt, TimeFormat format = TimeFormat.other, string split1 = "-", string split2 = ":")
60: {61: string toString = "yyyy-MM-dd HH:mm:ss";
62: switch (format)
63: { 64: case TimeFormat.other:
65: case TimeFormat.YY:
66: case TimeFormat.HH:
67: break;
68: case TimeFormat.hh:
69: toString="yyyy-MM-dd hh:mm:ss";
70: break;
71: case TimeFormat.yM:
72: toString="yyyy-MM";
73: break;
74: case TimeFormat.Md:
75: toString = "MM-dd";
76: break;
77: case TimeFormat.yMd:
78: toString = "yyyy-MM-dd";
79: break;
80: case TimeFormat.yHm:
81: toString = "yyyy-MM-dd HH:mm";
82: break;
83: case TimeFormat.yhm:
84: toString = "yyyy-MM-dd hh:mm";
85: break;
86: case TimeFormat.Hms:
87: toString = "HH:mm:ss";
88: break;
89: case TimeFormat.hms:
90: toString = "hh:mm:ss";
91: break;
92: case TimeFormat.Hm:
93: toString = "HH:mm";
94: break;
95: case TimeFormat.hm:
96: toString = "hh:mm";
97: break;
98: case TimeFormat.y:
99: toString = "yyyy";
100: break;
101: case TimeFormat.M:
102: toString = "MM";
103: break;
104: case TimeFormat.d:
105: toString = "dd";
106: break;
107: case TimeFormat.H:
108: toString = "HH";
109: break;
110: case TimeFormat.h:
111: toString = "hh";
112: break;
113: case TimeFormat.m:
114: toString = "mm";
115: break;
116: case TimeFormat.s:
117: toString = "ss";
118: break;
119: }120: toString = toString.Replace("-", split1);
121: toString = toString.Replace(":", split2);
122: 123: return dt.ToString(toString);
124: }125: #endregion
126: 127: #region GetDateTimeString 返回格式化的时间字符串
128: /// <summary>
129: /// 返回格式化的时间字符串
130: /// </summary>
131: /// <param name="dt">待格式化的时间</param>
132: /// <param name="format">格式化字符串类型</param>
133: /// <param name="split1">年月日连接字符串</param>
134: /// <param name="split2">时分秒连接字符串</param>
135: /// <returns></returns>
136: public static string GetDateTimeString(object dt, TimeFormat format = TimeFormat.other, string split1 = "-", string split2 = ":")
137: {138: return GetDateTimeString(Convert.ToDateTime(dt), format, split1, split2);
139: }140: #endregion
141: 142: #region GetDateTime 获取基准时间
143: /// <summary>
144: /// 获取基准时间
145: /// </summary>
146: /// <returns></returns>
147: public static DateTime GetDateTime()
148: {149: return GetDateTime(1900);
150: }151: #endregion
152: 153: #region GetDateTime 获取给定的时间
154: /// <summary>
155: /// 获取给定的时间
156: /// </summary>
157: /// <param name="year"></param>
158: /// <param name="month"></param>
159: /// <param name="day"></param>
160: /// <param name="hour"></param>
161: /// <param name="minite"></param>
162: /// <param name="second"></param>
163: /// <returns></returns>
164: public static DateTime GetDateTime(int year, int month=1, int day=1, int hour=0, int minite=0, int second=0)
165: {166: return new DateTime(year, month, day, hour, minite, second);
167: }168: #endregion
169: 170: #region GetDateTimeStr 获取基准时间的给定格式的时间字符串
171: /// <summary>
172: /// 获取基准时间的给定格式的时间字符串
173: /// </summary>
174: /// <param name="format"></param>
175: /// <param name="split1"></param>
176: /// <param name="split2"></param>
177: /// <returns></returns>
178: public static string GetDateTimeStr(TimeFormat format = TimeFormat.other, string split1 = "-", string split2 = ":")
179: {180: return GetDateTimeStr(1900,1,1,0,0,0,format,split1,split2);
181: }182: #endregion
183: 184: #region GetDateTimeStr 获取给定时间的时间字符串
185: /// <summary>
186: /// 获取给定时间的时间字符串
187: /// </summary>
188: /// <param name="year"></param>
189: /// <param name="month"></param>
190: /// <param name="day"></param>
191: /// <param name="hour"></param>
192: /// <param name="minite"></param>
193: /// <param name="second"></param>
194: /// <param name="format"></param>
195: /// <param name="split1"></param>
196: /// <param name="split2"></param>
197: /// <returns></returns>
198: public static string GetDateTimeStr(int year, int month=1, int day=1, int hour=0, int minite=0, int second=0,TimeFormat format = TimeFormat.other, string split1 = "-", string split2 = ":")
199: {200: return GetDateTimeString(GetDateTime(year, month, day, hour, minite, second), format, split1, split2);
201: }202: #endregion
203: } 204: 205: #region TimeFormat 格式时间字符串枚举
206: /// <summary>
207: /// 格式时间字符串枚举
208: /// </summary>
209: public enum TimeFormat
210: { 211: /// <summary>
212: /// 返回年月日时分秒 yyyy-MM-dd HH:mm:ss
213: /// </summary>
214: YY,215: /// <summary>
216: /// 返回年月日时分秒 yyyy-MM-dd HH:mm:ss
217: /// </summary>
218: HH,219: /// <summary>
220: /// 返回年月日时分秒 yyyy-MM-dd hh:mm:ss
221: /// </summary>
222: hh,223: /// <summary>
224: /// yM 返回年月 yyyy-MM
225: /// </summary>
226: yM,227: /// <summary>
228: /// 返回月日 MM-dd
229: /// </summary>
230: Md,231: /// <summary>
232: /// 返回年月日 yyyy-MM-dd
233: /// </summary>
234: yMd,235: /// <summary>
236: /// 返回年月日时分 yyyy-MM-dd hh:mm
237: /// </summary>
238: yhm,239: /// <summary>
240: /// 返回年月日时分 yyyy-MM-dd HH:mm
241: /// </summary>
242: yHm,243: /// <summary>
244: /// 返回时分秒 HH:mm:ss
245: /// </summary>
246: Hms,247: /// <summary>
248: /// 返回时分秒 hh:mm:ss
249: /// </summary>
250: hms,251: /// <summary>
252: /// 返回时分 HH:mm
253: /// </summary>
254: Hm,255: /// <summary>
256: /// 返回时分 hh:mm
257: /// </summary>
258: hm,259: /// <summary>
260: /// 返回年 yyyy
261: /// </summary>
262: y,263: /// <summary>
264: /// 返回月 MM
265: /// </summary>
266: M,267: /// <summary>
268: /// 返回日 dd
269: /// </summary>
270: d,271: /// <summary>
272: /// 返回时 HH
273: /// </summary>
274: H,275: /// <summary>
276: /// 返回时 hh
277: /// </summary>
278: h,279: /// <summary>
280: /// 返回分 mm
281: /// </summary>
282: m,283: /// <summary>
284: /// 返回秒 ss
285: /// </summary>
286: s,287: /// <summary>
288: /// 默认返回完整格式 yyyy-MM-dd HH:mm:ss
289: /// </summary>
290: other 291: }292: #endregion
293: 294: 295: }
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