CodePudding user response:

 # include & lt; Stdio. H> 
#include  
#include  
Int zhuanru (); 
Void zhuanchu (int num); 
Int main (int arg c, char * argv []) {

Char shuru, shuchu, s; 
Int jiezhi; 
//the while (1) {

Jiezhi=zhuanru (); 
Zhuanchu (jiezhi); 
//} 
return 0; 
} 

Int zhuanru () {
Int b, I, a=0; 
Char shuru, s [20]; 
Printf (" please enter the source data into the system (D - a decimal H - hexadecimal O - octal B - binary);" ); 
The scanf (" % s ", & amp; Shuru); 
Printf (" please input the source data (please uppercase letters) : "); 
The scanf (" % s ", & amp; S); 
B=strlen (s); 
Printf (" \ n b=% d ", b); 

for(i=0; iIf (shuru=='H') {
If (s [I] & gt;='A' & amp; & S [I] <='Z') 
S=int [I] [I] - 'A' (s) + 10 + '0'; 
A=a + ([I] - '0' (s) * (pow (16, b - 1 - I))); 
} 
If (shuru=='O') {
A=a + ([I] - '0' (s) * (pow (8, b - 1 - I))); 
} 
If (shuru=='B') {
A=a + ([I] - '0' (s) * (pow (2, 1 b - I))); 
} 
If (shuru=='D') {
A=a + ([I] - '0' (s) * (pow (10, b - 1 - I))); 
} 
} 
Printf (" \ n \ na=% d ", a); 
return a; 
} 

Void zhuanchu (int num) {
Int y, I=0, m=0, n=0, yushu; 
Char z [20], a [20], [20] b; 
Char shiliu [20]={' 0 ', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'}; 
Char shi [20]={' 0 ', '1', '2', '3', '4', '5', '6', '7', '8', '9'}; 
Char ba [20]={' 0 ', '1', '2', '3', '4', '5', '6', '7'}; 
Char er [20]={' 0 ', '1'}; 
Char shuchu; 
Printf (" please enter the target data base (D - a decimal H - hexadecimal O - octal B - binary);" ); 

The scanf (" % s ", & amp; Shuchu); 
Printf (" \ n \ nnum=% d ", num); 
If (shuchu=='H') {
Y=16; 
for(i=0; iB [y]='\ 0'; 
} 

If (shuchu=='D') {
Y=10; 
for(i=0; iB [y]='\ 0'; 
} 

If (shuchu=='O') {
Y=8; 
for(i=0; iB [y]='\ 0'; 
} 

If (shuchu=='B') {
Y=2; 
for(i=0; iB [y]='\ 0'; 
Printf (" \ ner=% 2 s ", er); 
Printf (" \ n b=% s ", b); 
} 
i=0; 
While (num> 0 {
Yushu=num % y; 
A [I]=yushu; 
//printf (" \ n \ na [I]=% d ", a [I]); 
i++; 
Num=num/y; 
} 
For (I=I - 1; I>=0; I -) {
M=a, [I]. 
//printf (" \ n \ nM=% d ", m); 
Z=b [n] [m]. 
Printf (" \ n \ nb [m]=% d ", b) [m]. 
//printf (" \ n \ nZ [I]=% d ", z [I]); 
N++; 
} 

Z [n]='\ 0'; 
Printf (" values for the converted: % s ", z); 

} 

//this program why zhuanchu inside using a loop () function converts a shiliu [20], ba [20] array cycle such as assigned to b made a mistake when [20] array? 
//I alone the zhuanchu function as the main function of the assignment is right, but don't know how this is wrong, how to change? Thank you very much 
//(program is a hexadecimal conversion)