CodePudding user response:

CodePudding user response:

 # include 
#include 

Int main () 
{
Char STR [41]={1}, con [5]={1}; 
Int a, b, c, x, flag=0; 

gets(str); 
Gets (con); 

//delete 
If (con [0]=='D') 
{
//for (a=0; STR [a]!='\ n'; +) 
for(a=0; STR [a]!='\ 0'; +) 
{
If (STR [a]==con [2]) 
{
For (x=0; xPrintf (" % c ", STR [x]). 
//for (x=(a + 1); STR [x]!='\ n'; X++) 
For (x=(a + 1); STR [x]!='\ 0'; X++) 
Printf (" % c ", STR [x]). 
break; 
} 
If (STR [a]=='. ') 
{
Puts (" Not exist "); 
break; 
} 
} 
} 
//insert 
If (con [0]=='I') 
{
For (a=40; a>=0; A -) 
{
If (STR [a]==con [2]) 
{
For (x=0; xPrintf (" % c ", STR [x]). 
Printf (" % c ", con [4]); 
//for (x=a; STR [x]!='\ n'; X++) 
For (x=a; STR [x]!='\ 0'; X++) 
Printf (" % c ", STR [x]). 
break; 
} 
If (STR [a]==STR [0]) 
{
Puts (" Not exist "); 
break; 
} 

} 
} 
//replace 
If (con [0]=='R') 
{
for(a=0; STR [a]!='\ n'; +) 
{
If (STR [a]==con [2]) 
{
STR [a]=con [4]; 
Flag=1; 
} 
If (STR [a]=='. ') 
{if (flag==1) 
{
//for (x=0; STR [x]!='\ n'; X++) 
For (x=0; STR [x]!='\ 0'; X++) 
{
Printf (" % c ", STR [x]). 
} 
break; 
} 
The else 
{
Puts (" Not exist "); 
break; 
} 
} 
} 
} 
return 0; 
}