C程序设计语言（第二版）2-4

2-4编写函数squeeze(s1,s2)，将字符串s1中与字符串s2中字符匹配的字符都删掉

 

#include<stdio.h>
#define max 100
void squeeze(char* leftStrig,char* rightString);

int main(){

	char left[100]="shizhendema";
	char right[100]="bushizhende";
	char* result="";
//	printf("%s\n",result);
	squeeze(left,right);

	//printf("%s\n",result);
	return 0;
}

void squeeze(char* leftString,char* rightString)
{
	int i;
	int j;
	int k=0;
	char rlString[max];
	for(i=0;leftString[i]!='\0';i++)
	{
		for(j=0;rightString[j]!='\0';j++)
		{
			if(leftString[i]==rightString[j])
				break;
		}
		if(rightString[j]=='\0')
		{
			rlString[k]=leftString[i];
			k++;
		}
	}
	rlString[k]='\0';
	printf("%s\n",rlString);
}

 

 

#include<stdio.h>
char* aString()
{
	//char s[100]="abc"; //这样是不行的
	char* s = new char[100];
	s="abc";
	return s;
}
int main()
{
	char* s;
	s=aString();
	printf("%s\n",s);
	return 0;
}