The break statement is used to exit the current loop or switch statement immediately. The specific functions are: 1. Exit the loop: When it appears in the loop body, it will exit the loop immediately. 2. Exit the switch statement: When it appears in the case branch, exit the switch statement immediately. 3. Labeled break statement: Allows you to exit from a nested structure.
The meaning of break statement in C language
The break statement is a jump statement in C language. Used to immediately exit the currently executing loop or switch statement and transfer control to the code immediately following it.
Usage:
The break statement can be used alone or with optional labels as parameters:
break;
// 或
break label;
Function:
Labeled break statement:
The labeled break statement allows you to exit from a nested loop or switch statement. The label must be a valid identifier that appears before the target loop or switch statement in the break statement.
For example:
outer_loop:
for (int i = 0; i < 10; i++) {
inner_loop:
for (int j = 0; j < 5; j++) {
if (条件) {
break inner_loop; // 退出内层循环
}
}
}
Common usage:
break statement is usually used in C language for:
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