в 14:21, 25 мая 2010

2010-05-25T14:21:19Z

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2010-05-25T10:32:40Z

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==Between a while loop and a for loop==

<source lang="cpp">for(A;B;C){
printf("%d\t",i);
}
It becomes

A;
while(B)
{
printf("%d\t",i);
C;
}</source>

==Put function into while loop condition statement==

<source lang="cpp">#include <stdio.h>

int main()
{
puts("Start typing.");
puts("Press ~ then Enter to stop");

while(getchar() != "~")
;
printf("Thanks!\n");
return(0);
}</source>
<pre class=codeResult>Start typing.
Press ~ then Enter to stop
a
a
a
a
a
a~
Thanks!</pre>

==The while loop==

<p>The general format for a while loop is</p>

<source lang="cpp">while (condition) {
simple or compound statement (body of the loop);
}</source>

==While loop and sum integers==

<source lang="cpp">#include <stdio.h>
int main(void)
{
long sum = 0L;
int i = 1;
int count = 0;
printf("\nEnter the number of integers you want to sum: ");
scanf(" %d", &count);
while(i <= count){
sum += i++;
}
printf("Total of the first %d numbers is %ld\n", count, sum);
return 0;
}</source>
<pre class=codeResult>Enter the number of integers you want to sum: 1
Total of the first 1 numbers is 1</pre>

==while loop nested in a for loop==

<source lang="cpp">#include <stdio.h>
int main(void)
{
long sum = 1L;
int j = 1;
int count = 10;
int i;
for(i = 1 ; i <= count ; i++)
{
sum = 1L;
j=1;
printf("\n1");
while(j < i){
sum += ++j;
printf("+%d", j);
}
printf(" = %ld\n", sum);
}
return 0;
}</source>
<pre class=codeResult>1 = 1

1+2 = 3

1+2+3 = 6

1+2+3+4 = 10

1+2+3+4+5 = 15

1+2+3+4+5+6 = 21

1+2+3+4+5+6+7 = 28

1+2+3+4+5+6+7+8 = 36

1+2+3+4+5+6+7+8+9 = 45

1+2+3+4+5+6+7+8+9+10 = 55</pre>

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C Tutorial/Statement/While Loop - История изменений

в 14:21, 25 мая 2010

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