C ++ break statement
C ++ in thebreak statement has the following two ways:
- When abreak statement occurs within a loop, the loop will be immediately terminated and the program flow will continue to implement immediately the next statement cycle.
- It can be used to terminatethe switch statement in a case.
If you are using a nested loop (ie a loop nested inside another loop), break statement to stop the execution of the innermost loop, and then start the next line of code after the block.
grammar
Break statement in C ++ syntax:
break;
flow chart
Examples
#include <iostream>
using namespace std;
int main ()
{
// 局部变量声明
int a = 10;
// do 循环执行
do
{
cout << "a 的值：" << a << endl;
a = a + 1;
if( a > 15)
{
// 终止循环
break;
}
}while( a < 20 );
return 0;
}
When the above code is compiled and executed, it produces the following results:
a 的值： 10 a 的值： 11 a 的值： 12 a 的值： 13 a 的值： 14 a 的值： 15