用星号替换 C++ 中的单词
本程序的目标是使用 c++ 编程代码用星号替换字符串中的某个特定单词。向量和字符串类的基本函数在实现预期结果方面起着关键作用。算法如下:
算法
START Step-1: Input string Step-2 Split the string into words and store in array list Step-3: Iterate the loop till the length and put the asterisk into a variable Step-4: Traverse the array foreah loop and compare the string with the replaced word Step-5: Print END
现在,根据算法编写以下代码。在此,string 的 strtok() 方法分割字符串并返回向量类数组列表类型。
示例
#include <cstring> #include <iostream> #include <vector> #include <string.h> //method for spliting string std::vector<std::string> split(std::string str,std::string sep){ char* cstr=const_cast<char*>(str.c_str()); char* current; std::vector<std::string> arr; current=strtok(cstr,sep.c_str()); while(current!=NULL){ arr.push_back(current); current=strtok(NULL,sep.c_str()); } return arr; } int main(){ std::vector<std::string> word_list; std::cout<<"string before replace::"<<"Hello ajay yadav ! you ajay you are star"<<std::endl; std::cout<<"word to be replaced::"<<"ajay"<<std::endl; word_list=split("Hello ajay yadav ! you ajay you are star"," "); std::string result = ""; // Creating the censor which is an asterisks // "*" text of the length of censor word std::string stars = ""; std::string word = "ajay"; for (int i = 0; i < word.length(); i++) stars += '*'; // Iterating through our list // of extracted words int index = 0; for (std::string i : word_list){ if (i.compare(word) == 0) // changing the censored word to // created asterisks censor word_list[index] = stars; index++; } // join the words for (std::string i : word_list){ result += i + ' '; } std::cout<<"output::"<<result; return 0; } }
如上代码所示,所有字符串操作代码都捆绑在 retrieveChar() 方法中,稍后会将其调用传递给程序 main() 执行。
输出
String before replace::Hello ajay yadav ! you ajay you are star Word to be replaced::ajay Output::Hello **** yadav ! you **** you are star
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