帮我基本调试 [英] Help me basic debug

问题描述

我有点问题。我不知道该如何回答？



这里样本输出：



a + b = 3

c的价值是：5



请帮帮我谢谢



我尝试过：



int a = 1;

double b = 2;

int c;



Console.WriteLine（a + b =+（a + b））;

Console.WriteLine（c的值为：+ c）;

I have a problem a bit. I don't know how should I put answer?

Here sample output:

a + b = 3
The value of c is: 5

please help me thanks

What I have tried:

int a = 1;
double b = 2;
int c;

Console.WriteLine("a + b = " + (a + b));
Console.WriteLine("The value of c is: " + c);

推荐答案

在发布的代码中，您永远不会分配 c ，因此这些代码甚至不应该编译。如果你试图在 c 中存储计算结果，那么就这样做：

c =（int）（ a + b）;

顺便问一下：为什么要将整数值与浮点数混合？

In the posted code, you never assign c, hence such code shouldn't even compile. If you are trying to store in c the result of the computation then do it:
c = (int) (a+b);
By the way: why are you mixing integer values with floating point ones?

麻烦的是你没有分配任何东西。

想象一个变量作为你衬衫的口袋，它可以容纳一件物品：一支笔，一支铅笔，一个手绢。

除非你明确地把东西放在口袋里，你不能把它拿出来！

所以尝试做手术，但把结果放到口袋里：

The trouble is that you aren't assigning anything.
Think of a variable as a pocket in your shirt, which can hold an item : a pen, a pencil, a hankie.
Unless you explicitly put something in the pocket, you can't take it out!
So try doing the operation, but putting the result into the "pocket":

int a = 1;
int b = 2;
int c = a + b;
Console.WriteLine("The value of {0} + {1} is {2}", a, b, c);

你不应该混合类型，除非你需要 - 它可能会导致一些奇怪的问题 - 所以我改变了 b的声明从 double 到 int 以匹配 a 和 c 。

最后一行只是一个整齐的形式或你所拥有的：字符串中的花括号将使用数字作为计数替换为其后的列表中的值：{0}将替换为第一个值（在本例中为变量 a ） ，{1}将替换为第二个值（在这种情况下来自变量 b ），依此类推。

试一试，看看会发生什么！

You shouldn't "mix types" unless you need to - it can cause some odd problems - so I changed the declaration of b from double to int to match a and c.
The final line is just a "tidy up" form or what you had: the curly brackets in the string will be replaced with the value from the list after it, using the number as a count: {0} will be replaced with the first value (in this case from the variable a), {1} will be replaced with the second value (in this case from the variable b), and so on.
Try it and see what happens!

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