"One of the really frustrating things for patients with fibromyalgia is that there's nothing to measure in labs or in X-rays.
VOA: special.2011.08.02
Now, unlike high school math or in algebra Z where you call things X and Y and Z, in programming, in computer science, you're actually dealing with humans where it's useful to have a variable name that's more descriptive than X and Y and Z.
不像高中数学或者代数中,称为X和Y和,在程序设计和计算机科学里,你实际上是在和人打交道,在这里有个描述性比xyz更强的,变量名称是很重要的。
And when you call a function, one of the things X that happens is whatever your passing in, for instance, X, ; and if this is A, this thing gets copied into A; so at that moment in time of calling increment, I actually have two copies of the same value in memory but they're referred to by different names.
当你调用一个函数,其中发生的一件事情是,不管你输入什么,比如,或者是A,它把这个东西复制到A中;,调用increment的时候,实际上在内存中,有两个同样的值的内存块,但是它们有不同的名字。
应用推荐