20150901 input score See pass, unary two equation, standard weight

Enter the score to see Pass, unary two equation, standard weight

Console.Write ("Please enter your name:");
String name = Console.ReadLine ();
Console.Write ("Please enter your score:");
Double Fenshu = convert.todouble (Console.ReadLine ());

if (Fenshu >= && Fenshu < 80)
{
Console.WriteLine ("Congratulations" + name + ", passed");
}
if (Fenshu < && Fenshu >= 80)
{
Console.WriteLine ("Congratulations" + name + ", 80+");
}
if (Fenshu >= 100)
{
Console.WriteLine ("Congratulations" + name + ", out of the box");
}

if (Fenshu < && Fenshu > 50)
{
Console.WriteLine (name + "60-50");
}
if (Fenshu < && fenshu >= 0)
{
Console.WriteLine (name + "less than 50");
}
if (Fenshu < 0 && Fenshu > 100)
{
Console.WriteLine ("Incorrect input");
}

Console.WriteLine ("To find the formula ax*x+bx+c=0");
Console.Write ("Please enter a=");
Double A = double. Parse (Console.ReadLine ());
Console.Write ("Please enter b=");
Double b = Double. Parse (Console.ReadLine ());
Console.Write ("Please enter c=");
Double c = Double. Parse (Console.ReadLine ());

Double de = b * b-4 * a * C;

if (a = = 0)
{
Console.WriteLine ("Not a two-dimensional equation");
}
Else
{
Console.WriteLine ("is a two-dimensional equation");
if (de >= 0)
{
Double X1 = (-B + math.sqrt (DE))/(2 * a);
Double x2 = (-b-math.sqrt (DE))/(2 * a);
if (De > 0)
{
Console.WriteLine ("Equation has two different real roots");
Console.WriteLine ("x1=" + x1 + "x2=" + x2);
}
Else
{
Console.WriteLine ("The equation has two identical real roots");
Console.WriteLine ("x1=x2=" + x1);
}
}
else if (De < 0)
{
Console.WriteLine ("The equation has no real roots");
}
}

Console.ReadLine ();

Console.Write ("Please enter your gender:");
String Xingbie = Console.ReadLine ();
Console.Write ("Please enter your height:");
Double Shengao = convert.todouble (Console.ReadLine ());
Console.Write ("Please enter your weight:");
Double Tizhong = convert.todouble (Console.ReadLine ());

Double n1 = shengao-tizhong-100;
Double n2 = shengao-tizhong-110;

if (Xingbie = = "Male")
{
if (N1 <= 3 && N1 >=-3)
{
Console.WriteLine ("Nice");
}
else if (N1 > 3)
{
Console.WriteLine ("Fat");
}
Else
{
Console.WriteLine ("Thin");
}

}
else if (Xingbie = = "female")
{
if (N2 <= 3 && n2 >=-3)
{
Console.WriteLine ("Nice");
}
else if (N2 > 3)
{
Console.WriteLine ("Fat");
}
Else
{
Console.WriteLine ("Thin");
}
}
Else
{
Console.WriteLine ("You entered the error");
}

20150901 input score See pass, unary two equation, standard weight