统计各种类型字符的个数
编一程序：输入一段字符，并统计各种类型字符的个数，比如整形有多少个，字符形有多少个．．．．
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作业自己做，不懂就看书
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给个小小的提示好吗？怎么让程序区分不同类型数据
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你先循环每个字符，然后判断其是数字还是字母还是符号还是其他类型的数据，当遇到一个字符的类型与前一个不一样时，就作一个记号。（对16进制数要另外处理）
以此类推
[[it] 本帖最后由 flyue 于 2008-6-16 18:10 编辑 [/it]]
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[quote][bo][un]flyue[/un] 在 2008-6-16 14:20 的发言：[/bo]
然后判断其是数字还是字母还是符号还是其他类型的数据对16进制树要另外处理）
怎么判断类型不同呢
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哎，，这贴不能就这样沉下去啊，，
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怎么判断？
你买了C语言的书后面一定有ASCII码表，你自己根据表来判断字符在哪个范围，从而知道了此字符是什么类型啊
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用计数排序的思想做看看....
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我的 代码着色器 就是按我4#那样做的，个人感觉效果不错：
#include <stdio.h>
#include <malloc.h>
#include <string.h>
#define null 0
struct node/* The struct for the information of a student. */
{
int num;
char name[8];
float score;
struct node *next;
};
typedef struct node node;
node *findnum(node *head, int snum) /* Finding the needed num from the database*/
{
node *t;
t = head->next;
while(t&&(t->num != snum))
t = t->next;
return t;
}
node *findname(node *head, char s[]) /* Finding the needed name from the database*/
{
node *t;
t = head->next;
while(t&&strcmp(t->name, s))
t = t->next;
return t;
}
void findnumout(node *head, int snum)/*Find the record according to num and print it out*/
{
node *t;
int sign = 1;
t = head->next;
puts("\nFinding:");
while(t)
{
if(t->num == snum)
{
printf("The student you want to find: num:%d, name:%s, score:%f\n", t->num, t->name, t->score);
sign = 0;
}
t = t->next;
}
if(sign)
puts("It is wrong!Not find!\n");
}
void findnameout(node *head, char s[])/*Find the record according to name and print it out*/
{
node *t;int sign = 1;
t = head->next;
puts("\nNow it is finding:");
while(t)
{
if(!strcmp(t->name, s))
{
printf("The student you want to find: num:%d, name:%s, score:%f\n", t->num, t->name, t->score);
sign = 0;
}
t = t->next;
}
if(sign)
puts("It is wrong!Not find!\n");
}
node *findp(node *head, node *sp)
{
node *t;
t = head;
while(t&&t->next != sp)
t = t->next;
return t;
}
node *creatnode() /* Creating a database .It is a linked-list with a header */
{
node *head, *t, *p;char c;/* When the "name" received comes to "0", the creation is over.*/
head = (node*)malloc(sizeof(node));
head->next = null;
t = head;
p = (node*)malloc(sizeof(node));
p->next = null;
puts("Input the num:");
scanf("%d", &p->num);
puts("Input the name:(within 8 words)");
scanf("%s", p->name);c = getchar();
puts("Input the score:");
scanf("%f", &p->score);
while(p->name[0] != '0')/*The "name" equal to "0" stands for the creation-finished sign.*/
{
t->next = p;p->next = null;
t = t->next;
p = (node*)malloc(sizeof(node));
puts("Input the num:");
scanf("%d", &p->num);
puts("Input the name:(within 8 words)");
scanf("%s", p->name);c = getchar();
puts("Input the score:");
scanf("%f", &p->score);
}
return head;
}
void insert(node *head, int snum)/* Inserting a record into the database. */
{
node *p, *t;char c; /* The function inserts the record into the database according to "num". */
p = (node*)malloc(sizeof(node));
p->next = null;
t = findnum(head, snum); /* Find the record whose "num" equals to "snum".*/
puts("Inserting!\n");
puts("Input the num:");
scanf("%d", &p->num);
puts("Input the name:(within 8 words)");
scanf("%s", p->name);c = getchar();
puts("Input the score:");
scanf("%f", &p->score);
if(t)
{
if(t->next != null)
{
p->next = t->next;t->next = p;
}
else
t->next = p;
}
else puts("\nIt is wrong!\n");
}
void deletenode(node *head, int snum)/* Deleting a record from the database. */
{
node *t; /*The function deletes the record according to "num". */
t = head;
while(t->next&&(t->next->num != snum))/*Find the previous record of the "snum"-record */
t = t->next;
if(t->next)
t->next = t->next->next;
else puts("\nIt is wrong!\n");
}
void print(node *head) /* Printing all the records. */
{
node *t;t = head->next;
while(t)
{
printf("The num:%d, name:%s, score:%f\n", t->num, t->name, t->score);t = t->next;
}
free(t);
}
void sortnum(node *head)/*Sort all the nodes using the algorithm of bubble*/
{
node *a, *b;int sign; /*According to the nums */
while(a)
{
a = head->next;
b = a->next;
sign = 1;
while(b)
{
if(a->num>b->num)
{
findp(head, a)->next = b;a->next = b->next;b->next = a;b = a->next;sign = 0;
}
else {
a = b;b = b->next;
}
}
if(sign)
break;
}
}
void sortscore(node *head)/*Sort all the nodes using the algorithm of bubble*/
{
node *a, *b;int sign; /*According to the score */
while(a)
{
a = head->next;
b = a->next;
sign = 1;
while(b)
{
if(a->score>b->score)
{
findp(head, a)->next = b;a->next = b->next;b->next = a;b = a->next;sign = 0;
}
else {
a = b;b = b->next;
}
}
if(sign)
break;
}
}
void main()
{
node *head;
head = creatnode();
puts("\nPrevious database is:\n");
print(head);
insert(head, 12);/*Insert a record after the node whose num is 12*/
printf("After the action of inserting, the database is:\n");
print(head);
deletenode(head, 11);/*Delete the record whose num is 11 */
puts("\nHaving been deleted, the database now is:\n");
print(head);
puts("\nTake the action of Sorting according to the num:\n");
sortnum(head);
print(head);
puts("\nTake the action of Sorting according to score:\n");
sortscore(head);
print(head);
findnumout(head, 12);/*Check out the student whose num is 12. */
findnameout(head, "huhl");/*Check out the student whose name is huhl */
}
#include <malloc.h>
#include <string.h>
#define null 0
struct node/* The struct for the information of a student. */
{
int num;
char name[8];
float score;
struct node *next;
};
typedef struct node node;
node *findnum(node *head, int snum) /* Finding the needed num from the database*/
{
node *t;
t = head->next;
while(t&&(t->num != snum))
t = t->next;
return t;
}
node *findname(node *head, char s[]) /* Finding the needed name from the database*/
{
node *t;
t = head->next;
while(t&&strcmp(t->name, s))
t = t->next;
return t;
}
void findnumout(node *head, int snum)/*Find the record according to num and print it out*/
{
node *t;
int sign = 1;
t = head->next;
puts("\nFinding:");
while(t)
{
if(t->num == snum)
{
printf("The student you want to find: num:%d, name:%s, score:%f\n", t->num, t->name, t->score);
sign = 0;
}
t = t->next;
}
if(sign)
puts("It is wrong!Not find!\n");
}
void findnameout(node *head, char s[])/*Find the record according to name and print it out*/
{
node *t;int sign = 1;
t = head->next;
puts("\nNow it is finding:");
while(t)
{
if(!strcmp(t->name, s))
{
printf("The student you want to find: num:%d, name:%s, score:%f\n", t->num, t->name, t->score);
sign = 0;
}
t = t->next;
}
if(sign)
puts("It is wrong!Not find!\n");
}
node *findp(node *head, node *sp)
{
node *t;
t = head;
while(t&&t->next != sp)
t = t->next;
return t;
}
node *creatnode() /* Creating a database .It is a linked-list with a header */
{
node *head, *t, *p;char c;/* When the "name" received comes to "0", the creation is over.*/
head = (node*)malloc(sizeof(node));
head->next = null;
t = head;
p = (node*)malloc(sizeof(node));
p->next = null;
puts("Input the num:");
scanf("%d", &p->num);
puts("Input the name:(within 8 words)");
scanf("%s", p->name);c = getchar();
puts("Input the score:");
scanf("%f", &p->score);
while(p->name[0] != '0')/*The "name" equal to "0" stands for the creation-finished sign.*/
{
t->next = p;p->next = null;
t = t->next;
p = (node*)malloc(sizeof(node));
puts("Input the num:");
scanf("%d", &p->num);
puts("Input the name:(within 8 words)");
scanf("%s", p->name);c = getchar();
puts("Input the score:");
scanf("%f", &p->score);
}
return head;
}
void insert(node *head, int snum)/* Inserting a record into the database. */
{
node *p, *t;char c; /* The function inserts the record into the database according to "num". */
p = (node*)malloc(sizeof(node));
p->next = null;
t = findnum(head, snum); /* Find the record whose "num" equals to "snum".*/
puts("Inserting!\n");
puts("Input the num:");
scanf("%d", &p->num);
puts("Input the name:(within 8 words)");
scanf("%s", p->name);c = getchar();
puts("Input the score:");
scanf("%f", &p->score);
if(t)
{
if(t->next != null)
{
p->next = t->next;t->next = p;
}
else
t->next = p;
}
else puts("\nIt is wrong!\n");
}
void deletenode(node *head, int snum)/* Deleting a record from the database. */
{
node *t; /*The function deletes the record according to "num". */
t = head;
while(t->next&&(t->next->num != snum))/*Find the previous record of the "snum"-record */
t = t->next;
if(t->next)
t->next = t->next->next;
else puts("\nIt is wrong!\n");
}
void print(node *head) /* Printing all the records. */
{
node *t;t = head->next;
while(t)
{
printf("The num:%d, name:%s, score:%f\n", t->num, t->name, t->score);t = t->next;
}
free(t);
}
void sortnum(node *head)/*Sort all the nodes using the algorithm of bubble*/
{
node *a, *b;int sign; /*According to the nums */
while(a)
{
a = head->next;
b = a->next;
sign = 1;
while(b)
{
if(a->num>b->num)
{
findp(head, a)->next = b;a->next = b->next;b->next = a;b = a->next;sign = 0;
}
else {
a = b;b = b->next;
}
}
if(sign)
break;
}
}
void sortscore(node *head)/*Sort all the nodes using the algorithm of bubble*/
{
node *a, *b;int sign; /*According to the score */
while(a)
{
a = head->next;
b = a->next;
sign = 1;
while(b)
{
if(a->score>b->score)
{
findp(head, a)->next = b;a->next = b->next;b->next = a;b = a->next;sign = 0;
}
else {
a = b;b = b->next;
}
}
if(sign)
break;
}
}
void main()
{
node *head;
head = creatnode();
puts("\nPrevious database is:\n");
print(head);
insert(head, 12);/*Insert a record after the node whose num is 12*/
printf("After the action of inserting, the database is:\n");
print(head);
deletenode(head, 11);/*Delete the record whose num is 11 */
puts("\nHaving been deleted, the database now is:\n");
print(head);
puts("\nTake the action of Sorting according to the num:\n");
sortnum(head);
print(head);
puts("\nTake the action of Sorting according to score:\n");
sortscore(head);
print(head);
findnumout(head, 12);/*Check out the student whose num is 12. */
findnameout(head, "huhl");/*Check out the student whose name is huhl */
}
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呵呵，感觉颜色有点单调...
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