c++ string 切分

针对C++中对string的切分的问题，可以使用两种方法来实现。

方法一：可以使用C语言中的strtok函数来进行分割。strtok函数包含在头文件<string.h>中，对于字符数组可以采用这种方法处理。测试代码如下：

#include <cstdio>
#include <cstdlib>
#include <cstring>

int main() {
    std::string str = "a,b*c,d";
    const char *sep = ",*"; // 可按多个字符来分割
    char *p;
    p = strtok((char*)str.c_str(), sep);
    while (p) {
        printf("%s ", p);
        p = strtok(NULL, sep);
    }
    printf("\n");
    system("pause");
    return 0;
}

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