#include <stdio.h>
#include <string.h>
#define N 48
char s[N];
/*
void printd(int n)
{
if (n<0){
putchar('-');
n=-n;
}
if (n/10)
printd(n/10);
putchar(n%10+'0');
}
*/
void reverse(char s[]){
int i, j, n=strlen(s), tmp;
for (i=0, j=n-1; i<j; i++, j--)
tmp = s[i], s[i] = s[j], s[j] = tmp;
}
char *myitoa(int n){
int i=0, sign = n;
char c;
if (sign < 0)
n = -n;
do {
s[i++] = n%10 + '0';
n = n/10;
} while (n> 0);
if (sign < 0)
s[i++] = '-';
s[i] = '\0';//最后加上字符串结束符
reverse(s);
return s;
}
int main(){
printf("%s\n", myitoa(123456789));
return 0;
}
实现itoa, int类型转字符类型
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转载自blog.csdn.net/yangjinjingbj/article/details/104033352
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