C语言学习笔记之字符串拼接的2种方法——strcat、sprintf

2024-10-22 02:59:51

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1. 使用strcat进行字符串拼接

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

int main() {

    char *firstName = "Theo";

    char *lastName = "Tsao";

    char *name = (char *) malloc(strlen(firstName) + strlen(lastName));

    strcpy(name, firstName);

    strcat(name, lastName);

    printf("%s\n", name);

    return 0;

}

2. 使用sprintf进行字符串拼接

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

int main() {

    char *firstName = "Theo";

    char *lastName = "Tsao";

    char *name = (char *) malloc(strlen(firstName) + strlen(lastName));

    sprintf(name, "%s%s", firstName, lastName);

    printf("%s\n", name);

    return 0;

}

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