if(ch2>ch3) ch3++; else --ch3;
printf(\ return 0; }
7. #include
float x,y; scanf(\ switch((int)x/10) { case
0:
printf(\ case
1: printf(\ case
2: printf(\ default:
printf(\ } return 0; }
y=1.0;
y=2*x+1;
y=3*x*x+2;
输入：15.3<回车> 8. #include
char ch1='A',ch2='B'; switch(ch1) {
case 'A':
switch(ch2) {
case 'B': printf(\ case 'A': printf(\ }
case 'B': printf(\ } return 0; } 9.
#include
float score; score = 100;
if (score<60) printf(\ else
switch( ( int ) score / 10 ) { case 10: case 9: printf(\ case 8: printf(\
case 7: printf(\ case 6: printf(\ default: printf(\ } }
10. #include
int i=0，a=2； if(i==0) printf(“**”)； else
printf(“$$”)； printf(“*”)； } 11.
#include
void main() {
int m=10,n=0,p=4,q=20; if (m) if (n) q=15-m; else q=25+m; else if (p) q=q+p;
printf(“q=%d\\n”,q); }
12. #include
int a=1,b=0; switch(a) {
case 1: switch (b) {
case 0: printf(\ case 1:printf(\ }
case 2: printf(\