} 第一个注释跨了四行,头尾两行是注释的界定符(Delimiter)/*和*/,中间两行开头的*号(Asterisk)并没有特殊含义,只是为了看起来整齐,这不是语法规则而是大家都遵守的C代码风格(Coding Style)之一。 使用注释需要注意两点: 1. 注释不能嵌套(Nest)使用,就是说一个注释的文字中不能再出现/*和*/了,例如/*text1...
例如定义char buf[10];,如果它是全局变量或静态变量,则自动初始化为0,如果它是函数的局部变量,则初值不确定,可以用memset(buf, 0, 10)清零,由malloc分配的内存初值也是不确定的,也可以用memset清零。 #include<string.h> #include<stdio.h> int main(void) { buf[]="Hello world!\n"; printf("Buffer b...
#include <stdio.h> #include <string.h> #define MAX_LINE_LENGTH 100 #define MAX_KEY_LENGTH 50 #define MAX_VALUE_LENGTH 50 int main() { FILE* configFile; char line[MAX_LINE_LENGTH]; char key[MAX_KEY_LENGTH]; char value[MAX_VALUE_LENGTH]; char* delimiter; int lineNumber = 0; //...
void splitString(const char *original, const char *delimiter, char ** * buffer, int * numStrings, int * * stringLengths){ const int lo = strlen(original); const int ld = strlen(delimiter); if(ld > lo){ *buffer = (void *)0; *numStrings = 0; *stringLengths = (void *)0; ret...
Abc 282 C - String Delimiter Problem Statement You are given a string S of length N consisting of lowercase English letters, ,, and ". It is guaranteed that S contains an even number of ". Let 2K be the number of " in S. For each i=1,2,…,K, the characters from the (2i−...
= NULL) string = str; if (string == NULL) return string; end = strstr(string, delimiter); if (end == NULL) { char *ret = string; string = NULL; return ret; } ret = string; *end = '\0'; string = end + strlen(delimiter); return ret; } ...
编译原理实验,能够辨别的类型如下: 关键字 KEYWORD 标识符 IDENTIFIER 运算符 OPERATOR 分隔符 DELIMITER 字符常量 CHARCON 字符串 STRING 数值常量 NUMBER 词法错误 ERROR 词法分析 词法分析器 状态图 状态转换图 作者其他创作 大纲/内容 21 字母 0 \" e | 14 @ OPERATOR %= OPERATOR -= 2 OPERATOR % >...
{ *e = '\0'; } return s; } int isdelimiter(char c) { if (isspace(c) || c == '=' || c == ':' ) { return 1; } else { return 0; } } int set_conf(conf_t *conf, char *key, char *value) { conf_t *p; if (key == NULL || value == NULL || conf == NULL...
void split_string(char* str, const char* delimiter) { char* token = strtok(str, delimiter); while (token != NULL) { printf("%s\n", token); token = strtok(NULL, delimiter); } } int main() { char str[] = "Hello, World! This is a test string."; ...
voidsplit(conststd::string&s, std::vector<std::string> &sv,constchardelimiter ='') { sv.clear(); std::istringstrem iss(s); std::stringtemp;//getline会通过流ss,在遇到delimiter之前,将之前的字符串写入temp中while(getline(iss, temp, delimiter)) { ...