cpp std::string original = "Hello, World!"; std::string lowercased = toLowerCase(original); std::cout << lowercased << std::endl; // 输出:hello, world! <br> 🚀 高效开发必备工具 🚀 🎯 一键安装IDE插件,智能感知本地环境💡精准解答,深得你心 ✨ 开启高效开发新境界 🚀 立即体验→ 👉文心快码
String str = "java cpp php c# objective-c"; String[] strArr = str.split("\\s"); System.out.println(Arrays.toString(strArr));// [java, cpp, php, c#, objective-c] 1. 2. 3. (3)样例三:按照按+、-、=符号拆分 String line = "100+200-150=150"; strArr = line.split("[\\+\...
一般来说,在处理字符串的时候通常会用到如下一些函数/方法:length、substring、find、charAt、toLowerCase、toUpperCase、trim、equalsIgnoreCase、startsWith、endsWith、parseInt、toString、split等。 如果使用STL中的std::string,它已经提供了如下一些比较有用的方法: length(),取得字符串的长度。 substr(),从字符串中...
lower_str(str); //function call to convert to lowercaseupper_str(str); //function call to convert to uppercasereturn 0;}Output: Enter the string: Happy Monday!The string in lower case: happy monday!The string in upper case: HAPPY MONDAY!
Implementation toLowerThe toLower function is the exact opposite of toUpper. The purpose of this function is to convert all uppercase letters from a String to lowercase Letters.Example: 'aBc 3' becomes 'abc 3'. Again it's very important that letters like numbers or spaces won't be ...
String a1 = "字符串"; String a2 = new String("scas"); //字节数组转换成字符串 byte[] arr1 = {'a','s','4','s'}; String a3 = new String(arr1); //字符数组转换成字符串 char[] arr2 = new char[]{'a','b','c'}; String a4 = new String(arr2); //字符串声明可以增加编...
usingSystem;publicclassToLowerTest{publicstaticvoidMain(){string[] info = {"Name","Title","Age","Location","Gender"}; Console.WriteLine("The initial values in the array are:");foreach(stringsininfo) Console.WriteLine(s); Console.WriteLine("{0}The lowercase of these values is:", Environm...
* Returns a new string in which all lowercase characters have been converted * into their uppercase equivalents. */ std::string toUpperCase(std::string str); /* * Function: toLowerCase * Usage: string s = toLowerCase(str); * --- * Returns a new string in which all uppercase ...
shrink_to_fit():将容量调整为等于当前大小。 #include <string> #include <iostream> int main() { std::string str = "Hello"; str.reserve(50); // 将容量扩展到至少 50 std::cout << "New Capacity: " << str.capacity() << std::endl; ...
voidto_lowercase(char&c){ c=std::tolower(static_cast<unsignedchar>(c)); } intmain() { // 1. for_each + unary function std::stringstr="CONVERT"; std::for_each(str.begin(),str.end(),to_lowercase); std::cout<<str<<std::endl; ...