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1.1 strstr
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void test_strstr()
{
char *str="Borland International";
char *str1="B",*ptr1;
char *str2="na",*ptr2;
char *str3="",*ptr3;
ptr1=strstr(str,str1);
printf("The substring1 is: %s\n", ptr1);//Borland International
ptr2=strstr(str,str2);
printf("The substring2 is: %s\n", ptr2);//national
ptr3=strstr(str,str3);
printf("The substring3 is: %s\n", ptr3); //Borland International
}
/*****************************************************
char *strstr( const char *string, const char *strCharSet );
Each of these functions returns a pointer to the first occurrence of strCharSet in string,
or NULL if strCharSet does not appear in string. If strCharSet points to a string of zero length,
the function returns string.
******************************************************/
1.2 atoiºÍ_itoa
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void char2int_1()
{
char* temp1="123";
int a1=atoi(temp1);
printf("char2int_1()\ta1+1=%
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2009-12-18 13:10
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#include<stdio.h>
#include<malloc.h>
#include<string.h>
/*
* ·×ª
*/
char *mystrrev(char *arr)
{
if (!arr)
{
return NULL;
}
char *temp = arr;
char t;
int leng = strlen(arr) + 1;
int l = (int)(leng / 2);
int i = 0;
while (l--)
{
t = arr[i];
arr[ ......
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int fgetc(FILE *stream);
int getc(FILE *stream);
int getchar(void);
//»ñÈ¡ÐÐϵÁÐ
char *fgets(char * restrict s, int n, FILE * restrict stream);
char *gets(char *s);//¿ÉÄܵ¼ÖÂÒç³ö£¬ÓÃfgets´úÌæÖ®¡£
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int fscanf(FILE * r ......