清单 2. 检索开关打开了吗？

Listing 2. Are the searching switches on?

youdao

运算符在一个范围内迭代。因此，该脚本并不是数10个行，而是对- n开关生成的循环迭代10次(请参阅“perldoc perlrun”和清单2，以获得该循环的示例)。

Thus, the script does not count 10 lines, it counts 10 iterations of the loop generated by the -n switch (see "perldoc perlrun" and Listing 2 for an example of that loop).

youdao

所以，当你告诉计算机，对某个电路开关进行特定的赋值时，相比使用一串1和0的序列，比如“0101010”，你可以使用短语“LET X=2”，同样达到相同的目的。

So rather than tell the computer in 1's and 0's ('0101010' say) to put a particular set of values into a particular circuit, you could use the phrase 'LET X=2' to mean the same.

youdao