c - strcat() 无法连接

Question

我有一个二维字符数组要连接成一个数组。它有一个错误:

error C2664: 'strcat' : cannot convert parameter 1 from 'char *[80]' to 'char *'

代码如下:

char *article[5] = {"the", "a", "one", "some", "any"};
char *sentence[80];

num = rand() % 5;
for(int x = 0; x < strlen(article[num]); x++){
    strcat(sentence, article[num][x]);    //a random element will be concatinated to the sentence array
}

Answer 1

这里有一些固定的代码可能会做你想做的事，但很难确定你想要什么......

srand(time_t(0));  // seed the random number generate once

// use const when handling pointers to string literals
const char* article[5] = {"the", "a", "one", "some", "any"};

char sentence[80];  // 80 character buffer in automatic storage - no pointers
sentence[0] = '\0'; // empty ASCIIZ string to start

for (int x = 0; x < 5; ++x)
{
    int num = rand() % 5;

    strcat(sentence, article[num]);
}
printf("%s\n", sentence);