使用Python求解二元一次方程：a = int(input("请输入整数a"))b = int(input("请输入整数b"))c = int(input("请输入整数c"))if a==0 and b!=0:num = b/cprint("方程解为：",num)if a==0 and b==0:print("方程无解")if a!=0 and b*b==4*a*c:num = -b/(2*a)