void trans_client(){
	char a='2';
	send(sockad,&a,1,0);
	char b;

	printf("send or get or quit?[S/G/Q]\n");
	scanf("%c%c",&a,&b);
	send(sockad,&a,1,0);


	for(;a!='Q'&&a!='q';){
		if(a=='S'||a=='s'){
			trans_c_send(name);
		}
		else if(a=='G'||a=='g'){
			trans_c_get(name);
		}

		printf("send or get or quit?[S/G/Q]\n");
		scanf("%c%c",&a,&b);
		send(sockad,&a,1,0);


	}


}

void trans_c_send(char *name){
	char *name;
	name=(char *)malloc(sizeof(char)*128);
	int num_name;
	memset(name,0,128*sizeof(char));
	printf("input the name of file:");
	scanf("%s",name);
	num_name=strlen(name);
	send(sockad,name,num_name,0);

	free(name);

}
void trans_c_get(char *name){
	char *name;
	name=(char *)malloc(sizeof(char)*128);
	int num_name;
	memset(name,0,128*sizeof(char));
	printf("input the name of file:");
	scanf("%s",name);
	num_name=strlen(name);
	send(sockad,name,num_name,0);

	free(name);

}

/*
void itc(int num_name,char *num_name_char){
	int a;
	int i;
	int m;
	for(i=0;i<3;i++){
		m=2-i;
		m=(int)pow(10,m);
		a=num_name/m;
		num_name=num_name-a*m;
		num_name_char[i]=a+48;
	}
}
*/