. Net basic statements

Branch statement

• Ternary Operators

(......)? B: c

• Value Method when the value may be null

(S = NULL )? "": S;

• If else statement

If (){} Else if (){} Else {}

• Switch statement

switch (VAR) { case :...... Break; default :...... Break; }

Iteration statement

• Do/WHILE LOOP

Do {......} While (<Test> );

• While Loop

While (<Test>) {......}

• For Loop

For (<initialization >;< condition >;< operation>) {......}

• Foreach, in Loop

Foreach (<basetype> <Name> in <array>) {......}

jump statement

• Break

Terminate cycle now

• Continue

End the current cycle and enter the next cycle

• Goto

Jump out of loop to mark position

Goto <labelname>; <Labelname>:

• Return

jump out of the loop and end the method containing it

exception BLOCK statement

• Throw

The throw statement is used to issueProgramAbnormal (abnormal) signal during execution.

• Try-catch

A try-catch statement consists of a try block followed by one or more catch clauses. These clauses specify different exception handlers, specify catch {...} for general exception handling {......}.

• try-finally

the Finally block is used to clear any resources allocated in the try block, and run any Code that must be executed even when an exception occurs. The control is always passed to the Finally block, regardless of the exit mode of the try block.

• Try-catch-finally

A common method used by catch and finally is to obtain and use resources in the try block, handle exceptions in the Catch Block, and release resources in the Finally block.

overflow check statement

• Checked

Test whether the value type overflows during arithmetic operations. If the overflow occurs, the system. overflowexception exception is obtained.

Try { Checked {......} } Catch (overflowexception ex) { ...... }

• Unchecked

Disable the detection of some codes and ignore overflow exceptions in arithmetic operations

Unchecked {......}