c++修改函数重载.ppt

结构体——结构的声明;结构体——结构的声明;结构体——结构变量说明;结构体——结构变量的初始化和使用;例2-13;void main（ ） { coutsetw(7)stu.numsetw(20)stu.name setw(3)stu.sexsetw(3)stu.age; } 运行结果: 97001 Lin Lin F 19;例2-14; dog1.weight = 15; dog2.weight = 37; chicken.weight = 3; dog1.feet = 4; dog2.feet = 4; chicken.feet = 2; cout The weight of dog1 is dog1.weight \n; cout The weight of dog2 is dog2.weight \n; cout The weight of chicken is chicken.weight \n; return 0; };运行结果;结构体数组举例;２．５．４联合体;例： union uarea { char c_data; short s_data; long l_data; };　　无名联合;例2-15;int main（ ） { fighter.wingspan = 40; fighter.passengers = 1; fighter.fuel_load = 12000.0; bomber.wingspan = 90; bomber.passengers = 12; bomber.bomb_load = 14000.0; transport.wingspan = 106; transport.passengers = 4; transport.pallets = 42; transport.fuel_load = 18000.0; fighter.pallets = 4;; cout The fighter carries fighter.pallets pallets.\n; cout The bomber bomb load is bomber.bomb_load \n; return 0; } 运行结果： The fighter carries 4 pallets. The bomber bomb load is 14000 ;２．５自定义数据类型;;２．５．２枚举类型—enum;枚举类型—enum;例2-11 ;#include iostream.h enum game_result {WIN, LOSE, TIE, CANCEL}; int main（ ） { game_result result; enum game_result omit = CANCEL; int count; for (count = WIN ; count = CANCEL ; count++) { result = (game_result)count; if (result == omit) { cout The game was cancelled\n; }; else { cout The game was played ; if (result == WIN) cout and we won!; if (result == LOSE) cout and we lost.; cout \n; } } return 0; };运行结果 The game was played and we won! The game was played and we lost. The game was played The game was cancelled;有三个字符串，要求找出其中最小者;字符串类;字符串类;（二）字符串变量的运算 在这里可以不用字符串处理函数，而进行直接简单的运算。 1.