字符串的长度为字符串

Question

  

可能重复：
  How to convert integer to string in C?

我想计算字符串的长度，并将值作为字符串传递给函数。

char* s="abcd";
int i = strlen(s);
char* lengthAsString = ????(i);

Answer 1

char* s = "abcd";
int i = strlen(s);
char lengthAsString[50];
sprintf(lengthAsString, "%d", i);

// now you can use lengthAsString to pass it to a function