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;
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() . () (). , a<b || d>k || z!=5 (a<b, d>k, z!=5), ( ) .
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/++ . 4.6.
4.6
| /++ | |
| ! a = = b |
| a>0 && c<=2 |
| b<c | | d>0 |
| 0.5<x && x£7.5 |
. 4.6
| /++ | |
| x<=0.5 | | 7.5<x |
| x<0 && y<0 | | x>0 && y<0 |
| (a<=2 | | 3<=a) && (a<=8 | | 9<=a) |
| h= =G || h= =g || h= =ϒ || h= = |
, . . 4.7.
4.7
| X | Y | N | |
| x | y | n |
- , , .
- 1
- , һ, if.
:
/* 4.2. . if */
/* . 031 .. */
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
main()
{
float x, y;
int n;
scanf(%5f%5f, &x, &y);
printf(\n X=%7.3f Y=%8.3f\n, x, y);
if(x>0. && y>0.) /* if */
n=1; /* */
else
n=234; /* Ҕ */
printf(\n N=%3d\n, n);
}
0.0703.000 1
12.30-104. 234
-17.5-8.94
. , .
4.3 (, , ).
- 2
- һ, , if goto.
:
/* 4.2. . if */
/* . 031 .. */
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
main()
{
float x, y;
int n;
scanf(%5f%5f, &x, &y);
printf(\n X=%7.3f Y=%8.3f\n, x, y);
if(x>0. && y>0.) goto M1; /* if */
n=234; /* Ҕ */
goto M2;
M1: n=1; /* */
M2: printf(\n N=%3d\n, n);
}
0.0703.000 1
12.30-104. 234
-17.5-8.94
. , .
4.4 (, , ).
.
|
|
|
.
