std::vector<std::string> 截取字符串到结尾

std::vector<std::string> 是C++标准库中的容器，用于存储一组字符串。你可以使用它来动态地管理字符串的集合，并且可以方便地进行插入、删除和访问操作。

要截取字符串到结尾，你可以使用std::string的substr函数来实现。substr函数接受两个参数，第一个参数是起始位置的索引，第二个参数是要截取的子字符串的长度。如果只指定起始位置而不指定长度，则截取从起始位置到字符串结尾的所有字符。

下面是一个示例代码，演示了如何将一个字符串截取为多个子字符串，并将它们存储在std::vector<std::string>中：

#include <iostream>
#include <vector>
#include <string>

int main() {
    std::string str = "Hello, world! This is a test string.";
    std::vector<std::string> substrings;

    // 截取字符串到结尾
    while (!str.empty()) {
        substrings.push_back(str);
        str = str.substr(1); // 从索引1开始截取到结尾
    }

    // 输出截取后的子字符串
    for (const auto& substring : substrings) {
        std::cout << substring << std::endl;
    }

    return 0;
}

运行上述代码，你将得到以下输出：

Hello, world! This is a test string.
ello, world! This is a test string.
llo, world! This is a test string.
lo, world! This is a test string.
o, world! This is a test string.
, world! This is a test string.
 world! This is a test string.
world! This is a test string.
orld! This is a test string.
rld! This is a test string.
ld! This is a test string.
d! This is a test string.
! This is a test string.
 This is a test string.
This is a test string.
his is a test string.
is is a test string.
s is a test string.
 is a test string.
is a test string.
s a test string.
 a test string.
a test string.
 test string.
test string.
est string.
st string.
t string.
 string.
string.
tring.
ring.
ing.
ng.
g.
.