C # Learning Diary integer type---data type

In the previous article we initially understand some data types, not comprehensive, in the spirit of earnest and realistic, I again on the data type comb.

Integer type of value type:

Remember before the C language class when the teacher also let us read this form request to write down, at that time also did not take a good look to remember this no use, but when I run the code below to know the teacher's good intentions:

Using System;  Using System.Collections.Generic;  Using System.Linq;  Using System.Text;    Namespace Example  {      class program      {          static void Main (string[] args)          {short              x = 32766;              x + +;              Console.WriteLine (x);              x + +;              Console.WriteLine (x);              Console.readkey ();}}}  

The results are expected:

For Mao is negative???? This time the chapter is now the great place to take the value range 3268 he is beyond the short range of values;

Similar experience has a lot, remember once the teacher asked us to write a program to enter a person's telephone number, and then output, the deskmate said "very simple, rinsed on the written," The Code is as follows:

Using System;  Using System.Collections.Generic;  Using System.Linq;  Using System.Text;    Namespace Example  {      class program      {          static void Main (string[] args)          {              int x;              Console.WriteLine ("Name:");              String name = Console.ReadLine ();              Console.WriteLine ("Phone Number:");              x = Int. Parse (Console.ReadLine ());   Type conversion              Console.WriteLine ("Your name is:" + name + "\ T" + "your phone is: {0}", x);}          }  

The result cannot be run because the valid digits of int are only 11 bits out of range for 10 digits and can be replaced with a long type. Add one point to the input and output: Console.WriteLine ("Your name is:" +name) the middle Plus + denotes the meaning of connecting 2 strings, that is, the meaning of unity, when there is a string type in the expression, such as

int i =9;  String Str = "HC666"  Console.WriteLine (Str+i);

Run the output as:

    HC6669

This is because the compiler automatically converts an int to a string type (implicit conversion) and then joins it when there is a string type and an int type in an expression. Implicit conversions are learned later.

In the spirit of learning, the exploration of the previous diary I have a new discovery: the definition of variable names with Chinese characters is also possible, and not error.

Using System;  Using System.Collections.Generic;  Using System.Linq;  Using System.Text;    Namespace Example  {      class program      {          static void Main (string[] args)          {              string name = "HC666";              int age =16;              Double height =1.70;              Console.WriteLine ("Name: {0}, Age: {1}, Height: {2}", name, age, height);}}}  

In fact, C # is to support multi-language writing, not only Chinese, in Japanese, Korean ... can also, but the proposal is still in English!! Just practise English.

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