Most of them exist in the form of text when data is converted to the ASP.NET page. Sometimes, in order to output, single-use display or implicit conversion is not possible, as needed in this section, data conversion.
String output:
INT INTAGE = 21;
String strage = intage.toString ();
When converting the DateTime value, you can specify the output style of the time by placing an optional parameter in parentheses. EG: Datecou.Tostring ("D");
Format code and its meaning:
D - The following format gives the Sun Moon Year: Thursday, September 21,2001
G - 09/22/2001 09:12:23
T - give the time: 01:23:22 hours
T - give me: 01:23
D - mm / dd / yyyy
data input
CONVERT functions Daquan:
Convert.TOBOOLEAN (); convert.tobyte (); convert.tochar (); convert.todatetime (); convert.todouble (); convert.todouble (); convert.toint16 (); convert.toint32 (); convert. TOINT64 (); convert.tosbyte (); convert.tosingle (); convert.touint16 (); convert.touint32 (); convert.touint64 ();
Seven, constant
Assignment: const Int absolutezero = -273;
It must be declared in the class definition without supersensome.
Eight, structured data type
1, array
Declare an array: string [] strs;
In order to generate a declarative array, initialization must be performed: strsz = new string [5];
Statement while initializing: string [] asp = new string [44];
The subscript of the array starts from 0.
Variable value of variables: ASP [0] = "SDF";
ASP [2] = "SDF";
......
or:
String [] ASP = New String [] {"ASDF", "ASDFAS"}
String [] ASP = new string [2] {"asdf", "asdfas"};
String [] ASP = {"ASDF", "ASDFAS"}
See example:
