导入头文件
```c
include ``` ```c float a, b, c, d, e, f, x, y; ``` ```c printf("请输入二元一次方程组的系数:\n"); printf("方程1:ax + by = c\n"); printf("方程2:dx + ey = f\n"); ``` ```c printf("请输入a的值:"); scanf("%f", &a); printf("请输入b的值:"); scanf("%f", &b); printf("请输入c的值:"); scanf("%f", &c); printf("请输入d的值:"); scanf("%f", &d); printf("请输入e的值:"); scanf("%f", &e); printf("请输入f的值:"); scanf("%f", &f); ``` ```c if (a * d - b * c != 0) { x = (e * d - b * f) / (a * d - b * c); y = (a * f - e * c) / (a * d - b * c); } else { printf("无解\n"); return 0; } ``` ```c printf("x = %.2f, y = %.2f\n", x, y); ``` 将以上代码整合到一个完整的C语言程序中: ```c include int main() { float a, b, c, d, e, f, x, y; printf("请输入二元一次方程组的系数:\n"); printf("方程1:ax + by = c\n"); printf("方程2:dx + ey = f\n"); printf("请输入a的值:"); scanf("%f", &a); printf("请输入b的值:"); scanf("%f", &b); printf("请输入c的值:"); scanf("%f", &c); printf("请输入d的值:"); scanf("%f", &d); printf("请输入e的值:"); scanf("%f", &e); printf("请输入f的值:"); scanf("%f", &f); if (a * d - b * c != 0) { x = (e * d - b * f) / (a * d - b * c); y = (a * f - e * c) / (a * d - b * c); printf("x = %.2f, y = %.2f\n", x, y); } else { printf("无解\n"); } return 0; } ``` 这个程序首先提示用户输入二元一次方程组的系数,然后读取这些系数并计算方程组的解。如果方程组有唯一解,程序将输出解的值;如果方程组无解,程序将输出“无解”。声明变量
提示用户输入方程组的系数
读取用户输入的系数
计算方程组的解
输出结果