Data type conversion in Csharp

c The data type conversion is as follows:

1、;Convert to a 32-bit integer.

2. Variables. tostring();The most common conversion is to a string.

3、"Orders"The number after +2514 is converted to a string.

4. ((Class Name A) Object Name X) Forcibly converts object X into an object of class A.

5、;Convert strings to other types.

1、;Convert to a 32-bit integer.

2. Variables. tostring();The most common conversion is to a string.

3、"Orders"The number after +2514 is converted to a string.

4. ((Class Name A) Object Name X) Forcibly converts object X into an object of class A.

5、;Convert strings to other types.

Google it, check the book, too...

Dude, you've already said the all-purpose conversion method - it's to ride on a donkey to find a donkey.

converts a lot of things can be pointed out.

toint32();Convert to a 32-bit integer. toint16();Convert to 16-bit integers.

toboolean();Convert to bool value. tostring();Convert to a string. todouble();Convert to decimals.

There are hints later, in C convert is almost a universal conversion, as long as there is no exception, you can convert at will.

It's so convenient. Of course, let's talk about other simple conversion methods.

Variable. tostring();The most common conversion is to a string.

+2514 string + number will all be converted to strings at the end.

Class name a) object name x) forcibly converts object x into an object of class a.

It's all up to the landlord himself to summarize, ** knock too much and you will naturally know.

int i = ;Also, if you want to convert to a type of reference, you can also use asteacher tea = teahcer();

e.g. student stu = tea as student;

That's all I know.

Variable.

.partse(variables);

a= variable as **

a= ** variable);

where ** is the data type.

Remember it when you need to use it, and remember what you do so much

There's no way to turn around like this, so let's just say what the purpose of doing this is.

C is a strongly typed language, some of its numeric types can be implicitly converted, others must be explicitly converted, implicitly converted types can only be short-length types to long types, int can be converted to long, float, double, decimal, vice versa must be explicitly converted.

Implicit conversion.

When converting a simple value type, if you convert it from left to right (from short to long) according to byte, short, int, long, float, double, you can directly convert it (implicit conversion) without any explanation. Simple example:

static void main(string args)

Displays the transition. If you convert a value type from a long byte to a short byte, the compiler will say "Unable to convert type *to type*, there is a display transformation", and you need to cast (display transformation). Simple example:

static void main(string args)

Each data type has its own range, for example, the range of byte type is 0 255, and the range of int type is 0 65535. Take a look at the following examples:

staticvoid main(string args)

The result of this ** is that "b has a value of 0", and if you change the value of a to 257, then b will have a value of 1. The compiler converts 256 to the corresponding binary, which is 100000000, and when converted to byte type (8-bit binary number), the 8-bit part will be truncated, so the result becomes 0.

tostring() conversion.

When converting a value type to a string type, you can directly call the value type method tostring() to convert, and tostring can also convert the result into the corresponding base form

staticvoid main(string args)

static void main(string args)

parse method.

Like int, long, float types have parse methods, which can convert strings to corresponding data types, simple ** example:

staticvoid main(string args)

convert class.

convert has a number of methods for converting data types, which converts objects inherited from object types to specified types, i.e. there are corresponding to other types of transformations). Another approach, type, is advantageous when it comes to generics.

It is a double type of data, and to convert it to string, you need to add tostring(), and modify it tostring(), which is modified to:

string shuzi1 = "";

string shuzi2 = ;

or: double shuzi2 = ; Can.

int a=;

I can't remember the case behind the above to.,You try it.,It's going to come out automatically after you click it.。

Passing parameters by value type or by introduction.

;What you mean by this is that all the data entered into the text box is converted into character types;

This is the conversion to a numeric type.

This is all a packaged method, which means that you need to know how to convert it, and there is no need to understand the specific conversion mechanism and conversion process.

Here's an idea.

Numbers to strings (and other types to strings), use. tostring() method. e.g. int i=123; string s = ;

String to value, depending on the type of value to be converted, different types are called. parse method, if converted to an int type, call int i = s).

Both problems can be solved with the convert static class.

The convert class provides all strings with other data types) You can cast the text of lablel to int, but if there is a string in it, it will report an exception, and the default int is int32 (it is larger than int16 and smaller than int64).

When you need to reassign lablel, you only need to add it to the end of the variable. tostring().

Ok, your problem description is very unclear, especially the first scenario, it is very confusing but if it is just a type conversion issue:

Scenario 1Assuming that count is int, i.e., int32, then convert to string as ;

Like what:; From string to int32 is count= ;

or count= ;

Scenario; For C related books, it is recommended to read "C Introductory Classics" for beginners