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有兩種可以用在迴圈中的語句：break 和 continue。
執行個體有兩種特殊的語句可用在迴圈內部：break 和 continue。
Breakbreak 命令可以終止迴圈的運行，然後繼續執行迴圈之後的代碼（如果迴圈之後有代碼的話）。
執行個體：<html><body><script type="text/javascript">var i=0for (i=0;i<=10;i++){if (i==3){break}document.write("The number is " + i)document.write("<br />")}</script></body></html>結果：
The number is 0The number is 1The number is 2Continue
continue 命令會終止當前的迴圈，然後從下一個值繼續運行。
執行個體：<html><body><script type="text/javascript">var i=0for (i=0;i<=10;i++){if (i==3){continue}document.write("The number is " + i)document.write("<br />")}</script></body></html>結果：
The number is 0The number is 1The number is 2The number is 4The number is 5The number is 6The number is 7The number is 8The number is 9The number is 10
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