C#. 2.2 statements

Second, the statement: order, Branch, loop.

(i) Order: slightly

Branch: Judgment--expression.

if () {} Four categories:

1.if

if (age > 18)

{Console.WriteLine ("Can go to the army!")         "); }

Note: You can omit {} after the if expression, but you must add {} If you want to pipe multiple sentences after the IF expression.

2.if...else ...

if (age > 18)

{Console.WriteLine ("Grown Up! ");

Console.WriteLine ("Can go to the army!") ");

Else

{Console.WriteLine ("Not yet grown! ");

Console.WriteLine ("Go home to school!")             "); }

Note: Do not add semicolons after 1.else. Do not add parentheses after 2.else.

3.if...else

If...else if...else multiple branches.

Input

Console.Write ("What time is the wolf old Wolf?" ");

string s = Console.ReadLine ();

int hour = Convert.ToInt32 (s);

if (hour >= 0 && Hour < 6)//0

{Console.WriteLine ("Wee" + Hour + "dot"); }

else if (hour >= 6 && hour <= 12)

{Console.WriteLine ("Morning" + hour + "point up"); } 、

else if (Hour > && Hour < 18)

{hour-= 12;             Console.WriteLine ("PM" + hour + "point up"); }

else if (hour >= && Hour < 24)

{hour-= 12;             Console.WriteLine ("Night" + Hour + "point up"); }

Else

{Console.WriteLine ("Unrecognized time!             "); }

4.if nesting. Nested in above 3 use

Stratification, classification to solve the problem of ideas.

C #. 2.2 statement