编写函数int count_number_string(char str[])和函数int maxnum_string(char str[])

//字符串中统计与查询
//杨鑫
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define MAXN 1000
char Str[MAXN];
/*
*寻找字符串中最大的整数
* */
int maxnum_string(char str[])
{
int i = 0, n = 0, maxNum = 0;
while(str[i] != '\0')
{
if(str[i] >= '0' && str[i] <= '9')
n = n * 10 + str[i] - '0';
else
{
if(maxNum < n)
maxNum = n;
n = 0;
}
i++;
}
if(maxNum < n)
maxNum = n;
return maxNum;
}

/*
*功能：统计字符串中的数字
* */
int count_number_string(char str[])
{
int i = 0, count = 0;
while(str[i] != '\0')
{
if(str[i] >= '0' && str[i] <= '9')
{
if(str[i+1] < '0' || str[i+1] > '9')
{
count++;
}

}
i++;
}
return count;

}

int main()
{
int i = 0, count_main = 0, max = 0;
printf("请输入一个字符串: ");
gets(Str);
printf("字符串的内容: ");
puts(Str);
count_main = count_number_string(Str);
printf("字符串一共同拥有:%d个数字,", count_main);
max = maxnum_string(Str);
printf("最大数字为:%d\n", max);
return 0;
}