C # Select Structure statement and Loop statement

1. Select Structure Statement

C # Selection Structure statement is mainly

if (judging condition) {

1

}

else{

2

}

Returns true when the condition in the if is satisfied execution 1, only if the condition in the if is not satisfied to return false execution 2

For example:

2. Looping statements

The loop statement is mainly divided into: While statement for statement Do...while statement These three kinds (for most commonly used)

(1). While statement

while (loop condition) {

1

}

How to meet the loop condition is always circulating (while thestatement is prone to form a dead loop )

This while is a dead loop.

(2). Do...while statements

do{

1
}

while (loop condition)

This statement is the same as the previous while statement

The difference is that the do...while is executed first 1 in the execution loop condition, while the while is the first execution of the loop condition in execution 1 (Do...while statement also easy to form a dead loop )

This statement is also a dead loop

(3) for loop (most commonly used)

For (initialize an expression; loop condition; action expression) {

1

}

This cycle is most commonly used (it is not as easy to form a dead loop as the two loops above)

This statement is not a dead loop.

(4). Loop inside can be set loop

For example:

3. Jump statements

It's mainly a break,continue.

(1). break

Jump out of the loop when executing to the break statement

Jump out of the loop when you're i=4

(2). Continue

When executing to the Continue statement, jump out of this loop

Jump out of this loop when you're i=4.

(3).

Continue and break they're the same way.

C # Select Structure statement and Loop statement