测验题目

How to make a 2 input XOR gate with only 2 input MUX and Inverter?

In Perl, we can write following code:

$b = $a;
$b =~ s/m/n/;

What does above code mean？
How to write above code in one statement?

Which of the following is evaluated first:?

Which of one of these represents an assignment operation?

Can you name the special functions a C++ compiler can create implicitly?

What are the two ways to achieve automatic type conversion from type X to type Y?

Evaluate as true or false: !(1 && 0 || !1) 

What does 7/9*9 equal (in C and C++)? 

If all is successful, what should main return?

Which sort is best for the set: 1 2 3 5 4

What is "shallow copy" and "deep copy"?

Is following Tcl code any problem?

----
while {$i < 10 }{
   # if {$i==5} {
   incr i
}
----

怎样在8位CPU中作16位加法。用汇编语言简单描述。