WINCC C函数用法大全（WINCC C function Daquan）

enables the optimization of string concatenation operations. this option is enabled by default. to disable the optimization of string concatenation operations, specify -xx:-optimizestringconcat. only the java hotspot server vm supports this option.。absolute and array as asm begin break case class const constructor continue destructor dispose div do downto else end except exit exports false file finalization finally for function goto if implementation in inherited initialization inline interface is label library mod new nil not object of on on operator or packed procedure program property raise record reintroduce repeat self set shl shr string then threadvar to true try type unit until uses var while with xor 共75个保留字。[cpp]//用法形式都是:xxx_cast(express) #pragma once #include #include #。

h> #include <stdio。h> Int main (void) { Char destination[25]; Char, *blank = "", *c = "C++", *Borland = "Borland""; Strcpy (destination, Borland); Strcat (destination, blank); Strcat (destination, C); Printf ("%s\n", destination); Return 0; } Function name: strchr Function: finding the first match of a given character in a string \ Usage: char, *strchr (char, *str, char, C); Procedure example: #include <string。h> #include <stdio。

h> Int main (void) { Char string[15]; Char, *ptr, C ='r'; Strcpy (string, This, is, a, string); PTR = strchr (string, C); If (PTR) Printf (The, character,%c, is, at,%d\n, position:, C, ptr-string); Else Printf ("The character was not found\n"); Return 0; } Function name: StrCmp Function: string comparison Usage: int, StrCmp (char, *str1, char, *str2); Look at the Asic code, str1>str2, return value > 0; two strings equal, return 0 Procedure example: #include <string。

h> #include <stdio。h> Int main (void) { Char, *buf1 = AAA, *buf2 = BBB, *buf3 = ccc"; Int ptr; PTR = StrCmp (buf2, buf1); If (PTR > 0) Printf ("buffer 2, is, greater, than, buffer, 1\n"); Else Printf ("buffer 2, is, less, than, buffer, 1\n"); PTR = StrCmp (buf2, buf3); If (PTR > 0) Printf ("buffer 2, is, greater, than, buffer, 3\n"); Else Printf ("buffer 2, is, less, than, buffer, 3\n"); Return 0; } Function name: strncmpi Function: compare a part of a string with another string, case or case Usage: int, strncmpi (char, *str1, char, *str2, unsigned, maxlen); Procedure example: #include <string。

h> #include <stdio。h> Int main (void) { Char *buf1 = "BBB", *buf2 = "BBB""; Int ptr; PTR = strcmpi (buf2, buf1); If (PTR > 0) Printf ("buffer 2, is, greater, than, buffer, 1\n"); If (PTR < 0) Printf ("buffer 2, is, less, than, buffer, 1\n"); If (PTR = 0) Printf ("buffer 2, equals, buffer, 1\n"); Return 0; } Function name: strcpy 功 能: 串拷贝 用 法: char * strcpy (char * str1, char * str2); 程序例: # include stdio。h > < # include string。

h > < int main (void) { char string [10]; char * str1 = "abcdefghi"; strcpy (string, str1); printf ("% s" n "string); return 0; } 函数名: strcspn 功 能: 在串中查找第一个给定字符集内容的段 用 法: int strcspn (char * str1, char * str2); 程序例: # include stdio。h > < # include string。h > < # include alloc。h > < int main (void) { char * string1 = "1234567890"; char * string2 = "747dc8"; int length; length = strcspn (string1, string2); printf ("where the character strings intersect ice position% d \ n", length); return 0; } 函数名: strdup 功 能: 将串拷贝到新建的位置处 用 法: char * strdup (char * str); 程序例: # include stdio。

h > < # include string。h > < # include alloc。h > < int main (void) { char * tab _ str, * string = "abcde"; tab _ str = strdup (string); printf ("% s" n "tab _ str); free (dup _ str); return 0; } 函数名: stricmp 功 能: 以大小写不敏感方式比较两个串 用 法: int stricmp (char * str1, char * str2); 程序例: # include string。h > < # include stdio。h > < int main (void) { char * buf1 = "bbb" * buf2 = "bbb"; int ptr; ptr = stricmp (buf2, buf1); if (ptr > 0)。

printf ("buffer 2 is greater than buffer 1 \ n"); if (ptr < 0) printf ("buffer 2 ice less than buffer 1 \ n"); if (ptr = = 0) printf ("buffer 2 equals buffer 1 \ n"); return 0; } 函数名: strerror 功 能: 返回指向错误信息字符串的指针 用 法: char * strerror (int errnum); 程序例: # include stdio。h > < # include errno。h > < int main (void) { char * buffer; buffer = strerror (errno); printf ("error:% s% n" buffer); return 0; } 函数名: strcmpi 功 能: 将一个串与另一个比较, 不管大小写 用 法: int strcmpi (char * str1, char * str2); 程序例: # include string。

h > < # include stdio。h > < int main (void) { char * buf1 = "bbb" * buf2 = "bbb"; int ptr; ptr = strcmpi (buf2, buf1); if (ptr > 0)。 printf ("buffer 2 is greater than buffer 1 \ n"); if (ptr < 0) printf ("buffer 2 ice less than buffer 1 \ n"); if (ptr = = 0) printf ("buffer 2 equals buffer 1 \ n"); return 0; } 函数名: strncmp 功 能: 串比较 用 法: int strncmp (char * str1, char * str2, int maxlen); 程序例: # include string。

h > < # include stdio。h > < int main (void) { char * buf1 = "aaabbb" * buf2 = "bbbccc" * buf3 = "ccc"; int ptr; ptr = strncmp (buf2, buf1,3); if (ptr > 0)。 printf ("buffer 2 is greater than buffer 1 \ n"); else printf ("buffer 2 ice less than buffer 1 \ n"); ptr = strncmp (buf2, buf3,3); if (ptr > 0)。 printf ("buffer 2 is greater than buffer 3 \ n"); else printf ("buffer 2 ice less than buffer 3 \ n"); return (0); } 函数名: strncmpi 功 能: 把串中的一部分与另一串中的一部分比较, 不管大小写 用 法: int strncmpi (char * str1, char * str2); 程序例: # include string。

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