To begin with C language, but also understand the point, now learn C language circulation structure, make me confused, how can good intention person to help me learn and grasp well, thank you.

CodePudding user response:

Stick to write the code examples, indicate which statements do not understand

CodePudding user response:

Try themselves according to the book code, good ask ten questions.

CodePudding user response:

Serious agree with upstairs.

CodePudding user response:

Alas, poor child, I help you, incomplete in each supplement:

 
A, unconditional to statements: goto statement label;//statement label the first character must be a letter or an underscore, and not for the digital, 

Second, while statement: 

Format: 

int i=0; 
While (i<=10) {//loop condition 
Application - & gt; ProcessMessages ();//in the long time cycle response message 
//loop condition established execution code: 
i++;//equivalent to I=I + 1; 
} 

Format: 

int i=0; 
Do {
Application - & gt; ProcessMessages ();//in the long time cycle response message 
//loop condition established execution code: 
i++;//equivalent to I=I + 1; 
} while (I & lt;=10);//loop condition 

Three, for statement: 

AnsiString ch [40]. 
Int I=0, a=ListBox1 - & gt; The Count. 
for (i=0; I & lt;=a - 1; I++) 
Ch [I]=ListBox1 - & gt; The Items - & gt; Strings [I]; 
Or: 
For (; ; {//terminate the circulation 
Application - & gt; ProcessMessages ();//to be in the long time cycle response message 
//execution statement 
} 
Or: 
AnsiString ch [40]. 
Int I=0, a=ListBox1 - & gt; The Count. 
For (; I & lt;=a - 1; ) {
Ch [I]=ListBox1 - & gt; The Items - & gt; Strings [I]; 
i++; 
} 
Or: 
for(int i=0; i<10; I++) {//cycle 
Application - & gt; ProcessMessages ();//to be in the long time cycle response message 
//execution statement 
Sleep(10);//delay 10 milliseconds 
} 

Jump out of the loop: 

break;//end of the cycle 

End of the cycle: 

continue;//jump over the cycle has not yet been performed below statement, then perform the next cycle 

To loop response message for a long time, can be added in the loop: 

Application - & gt; ProcessMessages ();//in the long time cycle response message 

//an example special usage: 


Void __fastcall TForm1: : Button1Click (TObject * Sender) 
{
Int z=0; 
int i=0; 
For (I=0, z=1; i<10, z<5; I++ z++) {//loop can be comma separated condition 
} 
Edit1 - & gt; Text=I; 
Edit2 - & gt; Text=z; 
} 

CodePudding user response:

Also don't understand the words LZ is the correct attitude 'assiduous research

CodePudding user response:

The original poster is probably the lack of a system of knowledge, is still in the "twilight" period of learning new knowledge, across the heart of the go to the white background

CodePudding user response:

On the top floor

CodePudding user response:

Poor child, a good thank "cautious"

CodePudding user response:

Examples of good upstairs