在C++98版本中,data()返回 const char* 类型,返回的字符串不以空字符(null character)结尾; 在C++11版本中,c_str()与data()用法相同(Both string::data and string::c_str are synonyms and return the same value.) string.length()计算长度、string.compare()字符串比较 示例代码如下: #include<string>#...
string(); // 默认构造string (const char* s); // 用c-string来构造string类对象string (size_t n, char c); // 用n个字符c来构造string对象string (const string& s); // 拷贝构造(用已有的string类对象去构造string类对象)===string (const char* s, size_t n); // 用c-string前n个字符来...
📌c_str()函数 📌size()函数 📌reserve()函数 📌push_back()函数 📌append()函数 📌insert()函数 📌resize()函数 📌erase()函数 📌find()函数 📌substr()函数 📌clear()函数 📌swap()函数 🎏实现string类运算符重载 📌operator []运算符重载 无const修饰的类对象 有const修饰的类对...
true if c is a control character.假设 c 是控制字符。则为 true isdigit(c) true if c is a digit.假设 c 是数字,则为 true。 isgraph(c) true if c is not a space but is printable.假设 c 不是空格,但可打印,则为 true。 islower(c) true if c is a lowercase letter.假设 c 是小写字母...
一般遍历C语言字符串有两种方式,一种是根据字符串的大小遍历,另一种是使用指针来遍历字符串,个人推荐使用根据字符串大小来遍历字符串,这样更稳妥。 1 //C语言字符串遍历示例 - 遍历输出字符串所有字符 2 #include<stdio.h> 3 #include<string.h> //strlen()的头文件 ...
std::cout << "Character at position 7: " << greeting[7] << std::endl; // 使用 substr() 获取子字符串 std::string sub = greeting.substr(7, 5); std::cout << "Substring from position 7 with length 5: " << sub << std::endl; // 使用 find() 查找子字符串 std::cout << "...
The following example inserts a space character in the fourth character position (the character at index 3) of a string. C# 复制 运行 using System; public class Example { public static void Main() { String original = "aaabbb"; Console.WriteLine("The original string: '{0}'", original)...
The following example inserts a space character in the fourth character position (the character at index 3) of a string. C# usingSystem;publicclassExample{publicstaticvoidMain(){ String original ="aaabbb"; Console.WriteLine("The original string: '{0}'", original); String modified = original...
Insert(Int32, Char[]) 將字元陣列插入這個緩衝區中指定的位移。 C# 複製 [Android.Runtime.Register("insert", "(I[C)Ljava/lang/StringBuffer;", "")] public Java.Lang.StringBuffer Insert (int offset, char[]? str); 參數 offset Int32 str Char[] 傳回 StringBuffer 屬性 Register...
Reports the zero-based index of the first occurrence in this instance of any character in a specified array of Unicode characters. Insert(Int32, String) Returns a new string in which a specified string is inserted at a specified index position in this instance. Intern(String) Retrieves the...