时间戳

首页 > 解决方案 > 给出意外输出的字符串替换函数

c++ - 给出意外输出的字符串替换函数

问题描述

我正在编写一个代码，它将一些随机的 17 个字符串替换为一个字母表，它给了我奇怪的篡改输出。基本上，我想做的是：

从用户那里获取输入，将其放入输入变量中，输入通过 algorithm() 函数保持不变，然后进入替换函数并被替换。然后，被替换的字符串通过原始路由返回到主函数，并在其中显示。

我将数组保留为字符串类型，因为 const char* 给了我一个分段错误。

std::string Subs[53]=
{
    "LQlMv]G5^^1kcm?fk",
    "7W^S;/vB(6%I|w[fl",
    "<w7>4f//Z55ZxK'z.",
    "_W5g(lu<pTu3^_A7n",
    "OfLm%8:EF}0V1?BSS",
    "|+E6t,AZ~XewXP17T",
    "L-nIbhm5<z:92~+,x",
    "L-nIbhm5<z:92~+,x",
    "9bC5f0q@qA(RKZ>|r",
    "9bC5f0q@qA(RKZ>|r",
    "k=5,ln(08IAl(gGAK",
    "|N,8]dGu)'^MaYpu[",
    "!&,Y*nz8C*,J}{+d]",
    "Us9%^%?n5!~e@@*+@",
    "zF8,1KV#¥]$k?|9R#",
    "0B4>=nioEjp>4rhgi",
    "EG@0[W9.N4i~E<f3x",
    "(0Pwkk&IPchJHs.7A",
    "7XgmQ6fW<|J+NY[m0",
    ".g4CwX/DU!!~!zbtZ",
    "+_U'qn_/9Fo|gT/!n",
    "=0s(mYh&F%y=MBS5(",
    "cg71(}bo+Q5P8F[T6",
    "lc|a\%5.9pOpooU+QR",
    "E_(3A:o+.]qL3MYA6",
    "H@O'X_RiVS@8l0bKD",
    "Y1gbGD`~8d>HSWN35",
    "LQlMv]G5^^1kcm?fk",
    "T4}gI;`BFVfhw=-sf",
    "6BHMA0IRix]/=(jht",
    "yS$=@Jdpp?P2k6SMQ",
    "t1~|kkh+>4d>}OQ`a",
    "2Y-\\CU\"944yBluWD5",
    "'M\\ZbIX5{`Xd;qi!o",
    "?N+RtVqj_r(C5@#0\"",
    "2;*Livh?V$X/8z@Md",
    ")IN|7FOs2l-mAM[d@",
    "(~f268J},xXrK'Rp'",
    "&r/qf9fFHnzV!RzH/",
    "}naDRH4p$NI2a).t,",
    "{8DM+7!.Mge|~fnO|",
    ")r[@nI0YDH>6cE38p",
    "(0Pwkk&IPchJHs.7A",
    ")r[@nI0YDH>6cE38p",
    "8M-=cQFQ,pPo7eu=p",
    "0PHw=/|(tZ1}FHm/'",
    "[su`'0Oybc.\"-/W5)",
    "1uHl[IC7Sr#NUJV;I",
    "8z8%,jK0CDOkJz8I?",
    "3Ao2yXDN%YzpE&Suy",
    "zNs`7E'e/$i8VqaUL",
    "bzHmA^K2>7`UZ?!AO",
};

std::string Alphabet[53] = 
{
    " ","a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","r","w","x","y","z",
    "A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z",
};


std::string replace(std::string rep) {
    int len = sizeof(Subs)/sizeof(Subs[0]);
    std::stringstream ss1;
    for(int i = 0; i < len; i++) {
        if (rep.find(Subs[i]) != std::string::npos) {
            ss1 << Alphabet[i];
        }
    }
    std::string input = ss1.str();
    return input;
}

std::string algorithm(std::string input)
{
    //some other algorithms come here(not relative to this question)
    input = replace(input);
    return input;
}

int main(void){
    int ed;
    std::cin >> ed;

    if(ed == 1){
//different function(not relative to the question)
        }
    else if(ed == 0){
        std::string input;
        std::cin >> input;
        input = algorithm(input);
        std::cout << input << std::endl;
    }

    else{
        std::cout << "1 or 0" << std::endl;
        main();
    }

return 0;
}

示例输入：9bC5f0q@qA(RKZ>|r|+E6t,AZ~XewXP17T!&,Y*nz8C*,J}{+d]!&,Y*nz8C*,J}{+d]0B4>=nioEjp>4rhgi

预期输出：hello

实际输出：|+E6t,AZ~XewXP17T9bC5f0q@qA(RKZ>|r9bC5f0q@qA(RKZ>|r!&,Y*nz8C*,J}{+d]0B4>=nioEjp>4rhgi

抱歉，变长了。

标签： c++stringreplacec++17

解决方案

您没有使用Alphabet. 我猜你想要ss1 << Alphabet[i];。

推荐阅读