break statement
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Fa sì che il allegando for, while o <div class="t-tr-text">do-while
loop o Original:
do-while
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istruzione switch
di interrompere.Original:
switch statement
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Original:
Causes the enclosing for, while or
do-while
loop or Original:
do-while
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Usato quando è altrimenti difficile da terminare il ciclo utilizzando l'espressione condizione e istruzioni condizionali.
Original:
Used when it is otherwise awkward to terminate the loop using the condition expression and conditional statements.
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Indice |
[modifica] Sintassi
break
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[modifica] Spiegazione
Dopo questa affermazione il controllo viene trasferito all'istruzione immediatamente successiva al ciclo racchiude. Tutti gli oggetti di stoccaggio automatico dichiarati in allegando ciclo vengono distrutti prima dell'esecuzione della prima riga dopo il ciclo racchiude.
Original:
After this statement the control is transferred to the statement immediately following the enclosing loop. All automatic storage objects declared in enclosing loop are destroyed before the execution of the first line following the enclosing loop.
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[modifica] Parole chiave
[modifica] Esempio
#include <iostream> int main() { int i = 2; switch (i) { case 1: std::cout << "1"; case 2: std::cout << "2"; //execution starts at this case label case 3: std::cout << "3"; case 4: case 5: std::cout << "45"; break; //execution of subsequent statements is terminated case 6: std::cout << "6"; } std::cout << '\n'; for (int j = 0; j < 2; j++) { for (int k = 0; k < 5; k++) { //only this loop is affected by break if (k == 2) break; std::cout << j << k << " "; } } }
Output:
2345 00 01 10 11
