原文地址：android 根據銀行卡卡號判斷銀行
原文是 java ，現在將它翻譯成 C# ，并對代碼重新編排整理，博主是一個今年剛出來的應屆畢業生，不足之處請多多包涵。
根據銀行卡號判斷所屬銀行，依據是卡號的前6位數，稱之為bin號。
我們把bin號轉化為長整形，再把各個銀行卡的bin號做成有序表。通過二分查找的方法，找到bin號在有序表的位置，然后讀出銀行卡的信息。
測試發現部分新卡號未能識別。
1.創建項目：BankInfoDemo（控制臺應用程序）
2.新建類：BankInfo.cs
1 /// <summary> 2 /// 銀行信息 3 /// </summary> 4 public class BankInfo 5 { 6 #region 數組形式存儲銀行BIN號 7 8 /// <summary> 9 /// 銀行 BIN 號 10 /// </summary> 11 PRivate readonly static long[] BankBin = 12 { 13 102033, 14 103000, 15 185720, 16 303781, 17 356827, 18 356828, 19 356833, 20 356835, 21 356837, 22 356838, 23 356839, 24 356840, 25 356885, 26 356886, 27 356887, 28 356888, 29 356889, 30 356890, 31 370246, 32 370247, 33 370248, 34 370249, 35 400360, 36 400937, 37 400938, 38 400939, 39 400940, 40 400941, 41 400942, 42 402658, 43 402673, 44 402791, 45 403361, 46 403391, 47 404117, 48 404157, 49 404171, 50 404172, 51 404173, 52 404174, 53 404738, 54 404739, 55 405512, 56 405512, 57 406252, 58 406254, 59 406365, 60 407405, 61 409665, 62 409666, 63 409667, 64 409668, 65 409669, 66 409670, 67 409671, 68 409672, 69 410062, 70 412962, 71 412963, 72 415599, 73 421317, 74 421349, 75 421393, 76 421437, 77 421865, 78 421869, 79 421870, 80 421871, 81 422160, 82 422161, 83 424106, 84 424107, 85 424108, 86 424109, 87 424110, 88 424111, 89 424902, 90 425862, 91 427010, 92 427018, 93 427019, 94 427020, 95 427028, 96 427029, 97 427038, 98 427039, 99 427062, 100 427064, 101 427571, 102 428911, 103 431502, 104 431502, 105 433666, 106 433670, 107 433680, 108 434061, 109 434062, 110 435744, 111 435745, 112 436718, 113 436728, 114 436738, 115 436742, 116 436745, 117 436748, 118 436768, 119 438088, 120 438125, 121 438126, 122 438588, 123 438589, 124 438600, 125 439188, 126 439225, 127 439227, 128 442729, 129 442730, 130 451289, 131 451291, 132 451804, 133 451804, 134 451810, 135 451810, 136 453242, 137 456351, 138 456418, 139 458060, 140 458060, 141 458071, 142 458071, 143 458123, 144 458124, 145 468203, 146 472067, 147 472068, 148 479228, 149 479229, 150 481699, 151 486466, 152 486493, 153 486494, 154 486497, 155 487013, 156 489592, 157 489734, 158 489735, 159 489736, 160 491020, 161 491020, 162 491031, 163 491032, 164 491040, 165 493427, 166 493878, 167 498451, 168 504923, 169 510529, 170 512315, 171 512316, 172 512411, 173 512412, 174 512425, 175 512431, 176 512466, 177 512695, 178 512732, 179 514906, 180 514957, 181 514958, 182 517636, 183 518212, 184 518364, 185 518378, 186 518379, 187 518474, 188 518475, 189 518476, 190 518710, 191 518718, 192 519412, 193 519498, 194 520082, 195 520108, 196 520131, 197 520152, 198 520169, 199 520194, 200 520382, 201 521899, 202 522153, 203 523036, 204 524011, 205 524047, 206 524070, 207 524091, 208 524094, 209 524864, 210 524865, 211 525498, 212 525745, 213 525746, 214 526410, 215 526855, 216 527414, 217 528020, 218 528931, 219 528948, 220 530970, 221 530980, 222 530980, 223 530990, 224 532420, 225 532430, 226 532450, 227 532458, 228 535910, 229 535910, 230 535918, 231 537830, 232 540297, 233 540838, 234 541068, 235 541709, 236 543159, 237 544033, 238 545619, 239 545623, 240 545947, 241 547628, 242 547648, 243 547766, 244 547766, 245 548259, 246 548844, 247 552245, 248 552288, 249 552534, 250 552587, 251 552599, 252 552742, 253 552794, 254 552801, 255 552853, 256 553131, 257 553242, 258 556610, 259 556617, 260 558360, 261 558730, 262 558808, 263 558809, 264 558868, 265 558868, 266 558894, 267 558895, 268 558916, 269 566666, 270 584016, 271 601100, 272 601101, 273 601121, 274 601122, 275 601123, 276 601124, 277 601125, 278 601126, 279 601127, 280 601128, 281 601131, 282 601136, 283 601137, 284 601138, 285 601140, 286 601142, 287 601143, 288 601144, 289 601145, 290 601146, 291 601147, 292 601148, 293
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