如何设置结构的字符串属性? [英] How do I set a string property of a struct?

问题描述

我的代码如下:

#include <stdio.h>

struct MyData {
    int id;
    char msg[255];
};

int main ( int argc, const char * argv[] ) {
    struct MyData item; 
    item.id = 3;
    item.msg = "something else";
    printf("Msg: %d", item.msg);
    return 0;
}

我在线上的赋值中收到类型不兼容的错误:item.msg = "别的东西";

I get an error of incompatible types in assignment on the line: item.msg = "something else";

我不用担心设置 id 属性，但我不知道如何设置字符串属性msg".知道我做错了什么吗?

I have no worries setting the id property, but I can't figure out how to set the string property "msg". Any ideas what I'm doing wrong ?

推荐答案

使用 strncpy() 将字符串复制到字符缓冲区中.不要忘记将 \0 分配给最后一个元素以防万一.

Use strncpy() to copy the string into the character buffer. Don't forget to assign \0 to the last element just in case.

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