The restriction to constant labels enables the branch computation to be an o (1) operation rather than an o (n) operation.

常量标签的限制使分支计算成为了一种O(1)运算，而不是O (n)运算。

youdao

'I must have tripped over a hidden branch or a stump,' said the Mole miserably. 'o, my! O, my!'

“我一定是被一根埋在雪里的树枝或树桩绊倒了，”鼹鼠惨兮兮地说。“哎哟！哎哟！”

youdao

'I must have tripped over a hidden branch or a stump,' said the Mole miserably. 'o, my! O, my!'

“我一定是被一根埋在雪里的树枝或树桩绊倒了，”鼹鼠惨兮兮地说。“哎哟！哎哟！”

youdao