一、strcmp
Comparesstring1andstring2to determine the alphabetic order.
intstrcmp (constchar *string1, const char *string2);//注意是int
string1 | The first string that is compared. |
string2 | The second string that is compared. |
strcmpcomparesstring1andstring2to determine the alphabetic order.
返回值：
Returns a value indicating the lexicographical relation between the strings:
Return value | Descrīption |
<0 | string1is less thanstring2 |
0 | string1is the same asstring2 |
>0 | string1is greater thanstring2 |
二、stricmp
（与strcmp的区别仅为忽略大小写）
Performs a case-insensitive comparison of two strings.
intstricmp(const char *string1, const char *string2);
string1 | The first string for comparison. |
string2 | The second string for comparison. |
stricmpperforms a case-insensitive comparison of two strings.
Returns a value indicating the lexicographical relation between the strings:
Return value | Descrīption |
<0 | string1is less thanstring2 |
0 | string1is the same asstring2 |
>0 | string1is greater thanstring2 |
脚本说明：
The following example compares two strings,string1andstring2, which are identical except for the word "quick" which is lowercase instring1and uppercase instring2.strcmp, which is case-sensitive, returns an unequal comparison.stricmp, which ignores case, returns an equal one.
下面的例子比较了两个字符串，string1和string2，除了单词"quick"在string1中为小写字母，在string2中为大写字母外，其他字母都是相同的。strcmp，是大小写敏感的，这个函数会返回一个不相同的结果。stricmp，会忽略大小写，返回相同的结果
#include "web_api.h"
Action() {
int result;
char tmp[20];
char string1[] = "The quick brown dog jumps over the lazy fox";
char string2[] = "The QUICK brown dog jumps over the lazy fox";
result =strcmp( string1, string2 ); /* Case-sensitive comparison */
if( result > 0 )
strcpy( tmp, "greater than" );
else if( result < 0 )
strcpy( tmp, "less than" );
else
strcpy( tmp, "equal to" );
lr_output_message( "strcmp: String 1 is %s string 2", tmp );
result =stricmp( string1, string2 ); /* Case-insensitive comparison */
if( result > 0 )
strcpy( tmp, "greater than" );
else if( result < 0 )
strcpy( tmp, "less than" );
else
strcpy( tmp, "equal to" );
lr_output_message( "stricmp: String 1 is %s string 2", tmp );
return 0;
}
结果：
Action.c(20): strcmp: String 1 is greater than string 2
Action.c(31): stricmp: String 1 is equal to string 2
