EBNF is used to describe syntax. A loop being infinite or otherwise wouldn't normally fall within what it would describe. As such, you'd be looking at the EBNF for an indefinite loop, which looks something like:
Normally the cond will be something that pushes a 0 or 1 on the stack to determine whether to continue the loop (0 means continue the loop, 1 means exit). As such, if you just insert a 0 directly, the loop will execute forever:
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EBNF 用于描述语法。无限循环或其他循环通常不属于它所描述的范围。因此，您将在 EBNF 中查找不定循环，它看起来类似于：
通常，
cond会将 0 或 1 压入堆栈以确定是否继续循环（0表示继续循环，1表示退出）。因此，如果直接插入0，循环将永远执行：EBNF is used to describe syntax. A loop being infinite or otherwise wouldn't normally fall within what it would describe. As such, you'd be looking at the EBNF for an indefinite loop, which looks something like:
Normally the
condwill be something that pushes a 0 or 1 on the stack to determine whether to continue the loop (0means continue the loop,1means exit). As such, if you just insert a0directly, the loop will execute forever:您还可以使用：
AGAIN一词用于执行返回到BEGIN的无条件分支。例如：You can also use:
The
AGAINword is used to do an unconditional branch back to theBEGIN. For example: