C # "Five" Process Control (2)

1. The foreach statement of the iteration statement

1. Foreach provides a shortcut for a for statement, and also facilitates a more consistent collection class.

2. Format:

 for (initial value; judging condition; growth value) {    code body;}

foreach (Type  variable in    collection) {     code body;}

Supplement: String types can be considered as a collection of char types
String String char character

My name is Snowskywalker

Examples:

According to the English sentence you entered, the program implements the word line output to the screen;

2, the new statement.

Char. Iswhitespace (c);

3. foreach statement

Each time the included code is executed, the loop variable reads one of the elements in the collection in turn.

The loop variable here is just a read-only local variable, and if the compiler is modified, an error occurs.

Program:

usingSystem;usingSystem.Collections.Generic;usingSystem.Linq;usingSystem.Text;usingSystem.Threading.Tasks;namespacethe foreach{of _5._8 iteration statementsclassProgram {Static voidMain (string[] args) {            //for (int i = 1;i <= 50;i++)//{            //Console.WriteLine (i); //}            //for (int i = 0; I <=; i++)//{            //Console.WriteLine (i); //}            //recognize statements as words and output rows by line//statement with a string type, with char in the letterConsole.WriteLine ("Please enter an English sentence:"); stringstr =Console.ReadLine (); Console.WriteLine ("The sentence you entered contains the following words:"); foreach(CharWordinchstr) {                if(Char.                Iswhitespace (Word)) {Console.WriteLine (); }                Else{console.write (word);
Word = ' t ';        The iteration variable of the foreach statement does not allow the re-assignment of the value}} console.readkey (); }    }}

Operation Result:

C # "Five" Process Control (2)