一個計算收益復利的小例子， 用c語言簡單編程， 如 test 30 20 40；
30以萬為單位，20是年收益百分比，40是年數。

#include <stdio.h> #include <stdlib.h>#define YEAR_GET_TYPE 0 // 年測試類型// 年的計算 #ifdef YEAR_GET_TYPE #define NAME "YEAR" // 年名稱 #define YEAR_TIMES 40 // 年數 #define YEAR_GET 20 // 年率 #else // 月的計算 #define NAME "MOON" // 月名稱 #define YEAR_TIMES 12 // 月數 #define YEAR_GET 3 // 月率 #endif//#define YEAR_WASTE 120000 // 年花費 //#define TATOL_NUM 1000000 // 總額#define YEAR_WASTE 0 // 年花費 #define TATOL_NUM 300000 // 總額int main(int argc, char* argv[]) {float fYearGet = ((float)YEAR_GET) / 100; // 百分比年率float fTatolNum = TATOL_NUM;int nYearNum = YEAR_TIMES;if (2 == argc){fTatolNum = atoi(argv[1])*10000;}else if (3 == argc){fTatolNum = atoi(argv[1]) * 10000;fYearGet = ((float)atoi(argv[2])) / 100; // 百分比年率}else if (4 == argc){fTatolNum = atoi(argv[1]) * 10000;fYearGet = ((float)atoi(argv[2])) / 100; // 百分比年率nYearNum = atoi(argv[3]);}printf("-----------------------------yearget------------------------------------\n");printf("test.exe 30 20 or test.exe 30 20 40 -----------\n");printf("TATOL_NUM:%.0fw ", fTatolNum/10000);printf("%s_GET:%.2f%%\n", NAME, fYearGet * 100);printf("%s_WASTE:%d ", NAME, YEAR_WASTE);printf("%s_TIMES:%d\n", NAME, nYearNum);printf("------------------------------------------------------------------------\n");// 總記錄printf("%s%d tatol = %f \n", NAME, 0, fTatolNum);for (int i = 0; i < nYearNum; i++){// 計算剩余fTatolNum = fTatolNum * (1 + fYearGet) - YEAR_WASTE;//打印換行if ((i != 0) && (0 == i % 10)){printf("\n");}// 打印printf("%s%d tatol = %f \n", NAME, i + 1, fTatolNum); }getchar();return 0; }

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運行結果如下：

F:\Project\yearget\Release>test -----------------------------yearget------------------------------------ test.exe 30 20 ----------- TATOL_NUM:30w YEAR_GET:20.00% YEAR_WASTE:0 YEAR_TIMES:40 ------------------------------------------------------------------------ YEAR0 tatol = 300000.000000 YEAR1 tatol = 360000.000000 YEAR2 tatol = 432000.031250 YEAR3 tatol = 518400.062500 YEAR4 tatol = 622080.125000 YEAR5 tatol = 746496.187500 YEAR6 tatol = 895795.437500 YEAR7 tatol = 1074954.625000 YEAR8 tatol = 1289945.625000 YEAR9 tatol = 1547934.750000 YEAR10 tatol = 1857521.750000YEAR11 tatol = 2229026.250000 YEAR12 tatol = 2674831.500000 YEAR13 tatol = 3209798.000000 YEAR14 tatol = 3851757.750000 YEAR15 tatol = 4622109.500000 YEAR16 tatol = 5546531.500000 YEAR17 tatol = 6655838.000000 YEAR18 tatol = 7987006.000000 YEAR19 tatol = 9584408.000000 YEAR20 tatol = 11501290.000000YEAR21 tatol = 13801549.000000 YEAR22 tatol = 16561859.000000 YEAR23 tatol = 19874232.000000 YEAR24 tatol = 23849080.000000 YEAR25 tatol = 28618898.000000 YEAR26 tatol = 34342680.000000 YEAR27 tatol = 41211216.000000 YEAR28 tatol = 49453460.000000 YEAR29 tatol = 59344156.000000 YEAR30 tatol = 71212992.000000YEAR31 tatol = 85455592.000000 YEAR32 tatol = 102546712.000000 YEAR33 tatol = 123056056.000000 YEAR34 tatol = 147667280.000000 YEAR35 tatol = 177200736.000000 YEAR36 tatol = 212640896.000000 YEAR37 tatol = 255169088.000000 YEAR38 tatol = 306202912.000000 YEAR39 tatol = 367443520.000000 YEAR40 tatol = 440932256.000000F:\Project\yearget\Release>test 1 10 100 -----------------------------yearget------------------------------------ test.exe 30 20 ----------- TATOL_NUM:1w YEAR_GET:10.00% YEAR_WASTE:0 YEAR_TIMES:100 ------------------------------------------------------------------------ YEAR0 tatol = 10000.000000 YEAR1 tatol = 11000.000000 YEAR2 tatol = 12100.000000 YEAR3 tatol = 13310.000000 YEAR4 tatol = 14641.000000 YEAR5 tatol = 16105.100586 YEAR6 tatol = 17715.611328 YEAR7 tatol = 19487.173828 YEAR8 tatol = 21435.892578 YEAR9 tatol = 23579.482422 YEAR10 tatol = 25937.431641YEAR11 tatol = 28531.175781 YEAR12 tatol = 31384.294922 YEAR13 tatol = 34522.726563 YEAR14 tatol = 37975.000000 YEAR15 tatol = 41772.500000 YEAR16 tatol = 45949.750000 YEAR17 tatol = 50544.726563 YEAR18 tatol = 55599.199219 YEAR19 tatol = 61159.121094 YEAR20 tatol = 67275.031250YEAR21 tatol = 74002.539063 YEAR22 tatol = 81402.796875 YEAR23 tatol = 89543.078125 YEAR24 tatol = 98497.390625 YEAR25 tatol = 108347.132813 YEAR26 tatol = 119181.851563 YEAR27 tatol = 131100.046875 YEAR28 tatol = 144210.062500 YEAR29 tatol = 158631.078125 YEAR30 tatol = 174494.187500YEAR31 tatol = 191943.609375 YEAR32 tatol = 211137.968750 YEAR33 tatol = 232251.765625 YEAR34 tatol = 255476.953125 YEAR35 tatol = 281024.656250 YEAR36 tatol = 309127.125000 YEAR37 tatol = 340039.843750 YEAR38 tatol = 374043.843750 YEAR39 tatol = 411448.250000 YEAR40 tatol = 452593.093750YEAR41 tatol = 497852.406250 YEAR42 tatol = 547637.687500 YEAR43 tatol = 602401.500000 YEAR44 tatol = 662641.687500 YEAR45 tatol = 728905.875000 YEAR46 tatol = 801796.500000 YEAR47 tatol = 881976.187500 YEAR48 tatol = 970173.812500 YEAR49 tatol = 1067191.250000 YEAR50 tatol = 1173910.375000YEAR51 tatol = 1291301.500000 YEAR52 tatol = 1420431.625000 YEAR53 tatol = 1562474.875000 YEAR54 tatol = 1718722.375000 YEAR55 tatol = 1890594.625000 YEAR56 tatol = 2079654.125000 YEAR57 tatol = 2287619.500000 YEAR58 tatol = 2516381.500000 YEAR59 tatol = 2768019.750000 YEAR60 tatol = 3044821.750000YEAR61 tatol = 3349304.000000 YEAR62 tatol = 3684234.500000 YEAR63 tatol = 4052658.000000 YEAR64 tatol = 4457924.000000 YEAR65 tatol = 4903716.500000 YEAR66 tatol = 5394088.500000 YEAR67 tatol = 5933497.500000 YEAR68 tatol = 6526847.500000 YEAR69 tatol = 7179532.500000 YEAR70 tatol = 7897486.000000YEAR71 tatol = 8687235.000000 YEAR72 tatol = 9555959.000000 YEAR73 tatol = 10511555.000000 YEAR74 tatol = 11562711.000000 YEAR75 tatol = 12718982.000000 YEAR76 tatol = 13990881.000000 YEAR77 tatol = 15389969.000000 YEAR78 tatol = 16928966.000000 YEAR79 tatol = 18621864.000000 YEAR80 tatol = 20484050.000000YEAR81 tatol = 22532456.000000 YEAR82 tatol = 24785702.000000 YEAR83 tatol = 27264272.000000 YEAR84 tatol = 29990700.000000 YEAR85 tatol = 32989770.000000 YEAR86 tatol = 36288748.000000 YEAR87 tatol = 39917624.000000 YEAR88 tatol = 43909388.000000 YEAR89 tatol = 48300328.000000 YEAR90 tatol = 53130360.000000YEAR91 tatol = 58443396.000000 YEAR92 tatol = 64287736.000000 YEAR93 tatol = 70716512.000000 YEAR94 tatol = 77788168.000000 YEAR95 tatol = 85566984.000000 YEAR96 tatol = 94123688.000000 YEAR97 tatol = 103536056.000000 YEAR98 tatol = 113889664.000000 YEAR99 tatol = 125278632.000000 YEAR100 tatol = 137806496.000000

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總結

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