Input output comment Case common data conversion constant operator classification precedence

(i) Input and output

Console.ReadLine (); Input statement

Console.WriteLine (); Output Statement Wrap Line

Console.Write (); Output statement does not wrap

(ii) Notes

Comment Line

/* * * comment on an area

Put it on the function and annotate the function.

(c) Case

Console.Write ("Please enter Name:");

String name = Console.ReadLine ();

Console.Write ("Please enter Age:");

String age = Console.ReadLine ();

Console.Write ("Please enter work unit:");

String Danwei = Console.ReadLine ();

Console.Write ("Please Enter education:");

String Xueli = Console.ReadLine ();

Console.Write ("Please enter Gender:");

String Xingbie = Console.ReadLine ();

Console.Write ("Please enter your ID number:");

String sfz = Console.ReadLine ();

Console.WriteLine ("I call" + name + ", this year" + Age + "years old, in" + Danwei + "work");

Console.WriteLine ("My Education is" + Xueli + ", my gender is" + Xingbie + ", my ID number is" + SFZ + ");

(iv) Common data

Data type

Shaping: int Long

Float type: float double

Character type: Char

Boolean type: BOOL

String Type: String

Date Type: Date Time

Enum type: enum

struct type: struct

(v) Conversion

Automatic conversion (implicit conversion)-when converting from a value type to a reference type

Casts (explicit conversions)-when converting from a reference type to a value type, or from a floating-point type to an integral type

(vi) Classification precedence of operators

Arithmetic: + + (Gaga)-(minus) * (multiply)/(except)% (take-up) + (plus)-(minus)

Relationship:> (greater than) < (less than) >= (greater than or equal) <= (less than or equal)

Logic:&& (for (and)) | | (OR)! Non-

Conditional operator:? : (Only one ternary operator if)

Assignment: = + = = *=/=%= (for example: x-=4, or x=x-4)

Input output comment Case common data conversion constant operator classification precedence