The strlen() function returns the total number of characters in a given string. Here is an example, that gets the last characterefrom the following string: #include<stdio.h>#include<string.h>intmain(){charfruit[5]="apple";printf("Last character : %c",fruit[strlen(fruit)-1]);} ...
#include<stdio.h>#include<assert.h>#include<string.h>intmy_strncmp(constchar*str1,constchar*str2,size_t num){//断言assert(str1&&str2);while(*str1==*str2&&num){if(*str1=='\0'){return0;}str1++;str2++;num--;}if(num){return*str1-*str2;}else{return0;}}intmain(){char str...
"; char ch = 'o'; char *lastO = strrchr(str, ch); if (lastO != NULL) { printf("Last '%c' found at position: %ld\n", ch, lastO - str); } else { printf("'%c' not found in the string.\n", ch); } return 0; }...
char *strstr(const char *string, const char *strSearch); 在字符串string中查找strSearch子串. 返回子串strSearch在string中首次出现位置的指针. 如果没有找到子串strSearch, 则返回NULL. 如果子串strSearch为空串, 函数返回string值. char *strdup(const char *strSource); 函数运行中会自己调用malloc函数为复制...
4staticString valueof(char[] chs):将字符数组转换为字符串5staticString valueof(inti) :将整型转换为字符串6valueOf(charc)7valueOf(longl)8valueOf(floatf)9valueOf(doubled)10valueOf(booleanb)11valueOf(char[] data)1213String toLowerCase():将此string中的所有字符都转换为小写。14String ...
原型:int strcmp(const char firststring[], const char secondstring);功能:比较两个字符串firststring和secondstring 例程: [cpp] view plain copy #include <iostream> #include <cstring> int main() { char buf1[] = "aaa"; char buf2[] = "bbb"; char buf3[] = "ccc"; int ptr; ptr = st...
string(int n,char c); //用n个字符c初始化 此外,string类还支持默认构造函数和复制构造函数,如string s1;string s2="hello";都是正确的写法。当构造的string太长而无法表达时会抛出length_error异常 string类的字符操作: const char &operator[](int n)const; ...
{long int msg_type;char text[MAX_TEXT];};static pthread_t tid;//===static void get_timestamp(char *buffer){time_t t;struct tm *p;struct timeval tv;int len;int millsec;t = time(NULL);p = localtime(&t);gettimeofday(&tv, NULL);millsec = (int)(tv.tv_usec / 1000);/* 时间...
System.out.println("输入字符串的最后一个字符是:"+lastChar); 1. 以上代码输出了带有提示信息的最后一个字符。 完整代码 经过以上步骤,我们将得到以下完整代码: importjava.util.Scanner;publicclassMain{publicstaticvoidmain(String[]args){Scannerscanner=newScanner(System.in);System.out.print("请输入一个字...
char类型可以存放小于等于127的值:。short int和int可以存放小于等于32 767的值;long int可以保存小于...