在旧电脑上刷了ubuntu的服务器版本，开着的时候旧电脑（yoga）的屏幕就处于了无用的状态。为了更好的利用这个屏幕，简单使用c++写了一个显示时间的代码。
由于这台yoga的屏幕是可以360翻转的，所以给时间的显示也增加了一点翻转功能。
1 #include <iostream> 2 #include <ctime> 3 #include <chrono> 4 #include <thread> 5 #include <string> 6 using namespace std; 7 const int MATRIX_WIDTH = 17; 8 const int MATRIX_HEIGHT = 14; 9 #ifdef _WIN32 10 #define CLEAR_SCREEN "cls" 11 #else 12 #define CLEAR_SCREEN "clear" 13 #endif 14 void clear_screen() { 15 std::system(CLEAR_SCREEN); 16 } 17 // 定义数字0到9的点阵表示 18 const char digits[10][MATRIX_HEIGHT][MATRIX_WIDTH] = { 19 { 20 21 " .XEEEEb ", 22 " MEEEUXEEE8 ", 23 " NEE. OEEC ", 24 " ,EEj EEE ", 25 " HEE jEE1 ", 26 " EEH EEZ ", 27 ".EEZ EEM ", 28 " EEZ EEM ", 29 " EEN .EEG ", 30 " LEE 3EE: ", 31 " .EEc EEE ", 32 " MEE7 NEE. ", 33 " bEEEEEEEE. ", 34 " DEEEL7 " 35 36 }, 37 { 38 39 " ,:LHL ", 40 " jNEEEEE ", 41 " EY'MEE ", 42 " HEE ", 43 " NEE ", 44 " KEE ", 45 " KEE ", 46 " KEE ", 47 " KEE ", 48 " KEE ", 49 " KEE ", 50 " EEE ", 51 " EEE ", 52 " CGD " 53 54 }, 55 { 56 57 " :LEEEEEG ", 58 " EEEEHMEEEEU ", 59 " OC LEEc ", 60 " EEE ", 61 " NEE ", 62 " :KEE ", 63 " KEE ", 64 " :KEE ", 65 " bKEE ", 66 " .KEE ", 67 " bKEE ", 68 " jEEE ", 69 " NEEEEEEEEEEEE ", 70 " 3GD3DOGGGGGUX " 71 72 }, 73 { 74 75 " .CNEEEEE8 ", 76 " EEEELLEEEEc ", 77 " :' EEE ", 78 " cEE: ", 79 " EEE ", 80 " .::jZEEG ", 81 " EEEEEEC ", 82 " 'jNEEZ ", 83 " 7EEM ", 84 " KEE ", 85 " KEE ", 86 " C EEE1 ", 87 " bEEEEEEEEEE7 ", 88 " :DHEEEN8. " 89 90 }, 91 { 92 93 " bMNj ", 94 " NEEEU ", 95 " EEGEE3 ", 96 " EEU EEJ ", 97 " EEM EEJ ", 98 " EEU EEJ ", 99 " .EEc EEC ", 100 " :EE EE7 ", 101 "jEEN738ODDEEM3b ", 102 "LEEEEEEEEEEEEEE ", 103 " EE1 ", 104 " EEC ", 105 " EEd ", 106 " bUd " 107 108 }, 109 { 110 111 " NHKKEEEEEX ", 112 " 7EEEEEEEEEK ", 113 " 8EN ", 114 " NEC ", 115 " EE ", 116 " .EEEEEENC ", 117 " :X3DGMEEEEU ", 118 " MEEU ", 119 " EEE ", 120 " XEE ", 121 " EEE ", 122 " j :EEE ", 123 " JEEEEEEEEEN ", 124 " 7GNEEEMc " 125 126 }, 127 { 128 129 " 1LEEE1 ", 130 " :EEEEEEN, ", 131 " MEEM. ", 132 " EEE ", 133 " LEE .. ", 134 " EE77EEEEEEL ", 135 "3EEEED.'.GEEE. ", 136 "LEEb EEE ", 137 "MEE 8EE, ", 138 "8EE cEE: ", 139 " EEX EEE ", 140 " CEEG LEEj ", 141 " jEEEEEEEEE7 ", 142 " 7LEEEX: " 143 144 }, 145 { 146 147 " KEEEEEEEKNMHH ", 148 " EEEEEEEEEEEEE ", 149 " :EE. ", 150 " EEJ ", 151 " EEK ", 152 " NEE ", 153 " CEE. ", 154 " .EE8 ", 155 " EEE ", 156 " NEE ", 157 " 3EE: ", 158 " .EEU ", 159 " .EEE ", 160 " 1XG ", 161 162 }, 163 { 164 165 " 8EEEEEL. ", 166 " OEEEGC8EEEM ", 167 " 1EEj :EEO ", 168 " EEE EEE ", 169 " DEEj :EE7 ", 170 " UEENj bEE7 ", 171 " EEEEEEE ", 172 " DEEL:.8EEEM ", 173 " EEE ,EEE ", 174 "7EE1 jEE1 ", 175 "cEEc 7EEj ", 176 " EEE: .EEE ", 177 " KEEEEHEEEEL ", 178 " JHEEEM1 " 179 180 }, 181 { 182 183 " cEEEEEO ", 184 " 1EEELOLEEE3 ", 185 " 1EE3 DEEc ", 186 " EEN KEE ", 187 ",EE1 jEE ", 188 ".EEX :EE. ", 189 " EEEj :EEE ", 190 " NEEENMEEEHEE ", 191 " .bEEEEC XEE ", 192 " :EE: ", 193 " CEEG ", 194 " 1EEEJ ", 195 " 8EEEEEEX ", 196 " COLIN' " 197 198 }}; 199 200 string digitst[MATRIX_HEIGHT] = { 201 "################################## #############################################", 202 "################################## #############################################", 203 "################################## # #############################################", 204 "################################## ### #############################################", 205 "################################## # #############################################", 206 "################################## #############################################", 207 "################################## #############################################", 208 "################################## #############################################", 209 "################################## # #############################################", 210 "################################## ### #############################################", 211 "################################## # #############################################", 212 "################################## #############################################", 213 "################################## #############################################", 214 "################################## #############################################"}; 215 216 int ascii_to_int(char a) 217 { 218 int res = int(a) - 48; 219 if (res > 9 || res < 0) 220 return 0; 221 return res; 222 } 223 224 void display_clock(const string &c) 225 { 226 227 for (int row = 0; row < MATRIX_HEIGHT; row++) 228 { 229 for (int col = 0; col < MATRIX_WIDTH; col++) 230 { 231 digitst[row][col] = digits[ascii_to_int(c[0])][row][col]; 232 } 233 } 234 for (int row = 0; row < MATRIX_HEIGHT; row++) 235 { 236 for (int col = 0; col < MATRIX_WIDTH; col++) 237 { 238 digitst[row][col + MATRIX_WIDTH] = digits[ascii_to_int(c[1])][row][col]; 239 } 240 } 241 for (int row = 0; row < MATRIX_HEIGHT; row++) 242 { 243 for (int col = 0; col < MATRIX_WIDTH; col++) 244 { 245 digitst[row][col + MATRIX_WIDTH * 2 + 5] = digits[ascii_to_int(c[2])][row][col]; 246 } 247 } 248 for (int row = 0; row < MATRIX_HEIGHT; row++) 249 { 250 for (int col = 0; col < MATRIX_WIDTH; col++) 251 { 252 digitst[row][col + MATRIX_WIDTH * 3 + 5] = digits[ascii_to_int(c[3])][row][col]; 253 } 254 } 255 256 for (int i = 0; i < MATRIX_HEIGHT; i++) 257 { 258 for (int j = 0; j < MATRIX_WIDTH * 4 + 5; j++) 259 { 260 cout << digitst[i][j]; 261 } 262 cout << endl; 263 } 264 } 265 266 void display_clock_turn180(const string &c) 267 { 268 for (int row = 0; row < MATRIX_HEIGHT; row++) 269 { 270 for (int col = 0; col < MATRIX_WIDTH; col++) 271 { 272 digitst[row][col + MATRIX_WIDTH * 3 + 5] = digits[ascii_to_int(c[0])][MATRIX_HEIGHT - 1 - row][MATRIX_WIDTH - 1 - col]; 273 } 274 } 275 for (int row = 0; row < MATRIX_HEIGHT; row++) 276 { 277 for (int col = 0; col < MATRIX_WIDTH; col++) 278 { 279 digitst[row][col + MATRIX_WIDTH * 2 + 5] = digits[ascii_to_int(c[1])][MATRIX_HEIGHT - 1 - row][MATRIX_WIDTH - 1 - col]; 280 } 281 } 282 for (int row = 0; row < MATRIX_HEIGHT; row++) 283 { 284 for (int col = 0; col < MATRIX_WIDTH; col++) 285 { 286 digitst[row][col + MATRIX_WIDTH] = digits[ascii_to_int(c[2])][MATRIX_HEIGHT - 1 - row][MATRIX_WIDTH - 1 - col]; 287 } 288 } 289 for (int row = 0; row < MATRIX_HEIGHT; row++) 290 { 291 for (int col = 0; col < MATRIX_WIDTH; col++) 292 { 293 digitst[row][col] = digits[ascii_to_int(c[3])][MATRIX_HEIGHT - 1 - row][MATRIX_WIDTH - 1 - col]; 294 } 295 } 296 297 for (int i = 0; i < MATRIX_HEIGHT; i++) 298 { 299 for (int j = 0; j < MATRIX_WIDTH * 4 + 5; j++) 300 { 301 cout << digitst[i][j]; 302 } 303 cout << endl; 304 } 305 } 306 307 void while_display_clock() 308 { 309 while (true) 310 { 311 clear_screen(); 312 std::time_t currentTime = std::time(nullptr); 313 std::tm *localTime = std::localtime(¤tTime); 314 string sh = to_string(localTime->tm_hour); 315 string sm = to_string(localTime->tm_min); 316 if (sh.size() == 1) 317 { 318 sh = '0' + sh; 319 } 320 if (sm.size() == 1) 321 { 322 sm = '0' + sm; 323 } 324 325 display_clock(sh + sm); 326 std::this_thread::sleep_for(std::chrono::seconds(1)); 327 } 328 } 329 330 void while_display_clock_turn180() 331 { 332 while (true) 333 { 334 clear_screen(); 335 std::time_t currentTime = std::time(nullptr); 336 std::tm *localTime = std::localtime(¤tTime); 337 string sh = to_string(localTime->tm_hour); 338 string sm = to_string(localTime->tm_min); 339 if (sh.size() == 1) 340 { 341 sh = '0' + sh; 342 } 343 if (sm.size() == 1) 344 { 345 sm = '0' + sm; 346 } 347 348 display_clock_turn180(sh + sm); 349 std::this_thread::sleep_for(std::chrono::seconds(1)); 350 } 351 } 352 int main() 353 { 354 while_display_clock_turn180(); 355 return 0; 356 }
最终效果如下
