利用sprintf和sscanf实现十六进制和十进制之间的相互转换

               

#include <stdio.h>int main(){ char s[100] = {0}; sprintf(s, "%x", 15); printf("%s\n", s); // f char str[100] = "f"; int i = 0; sscanf(str, "%x", &i); printf("%d\n", i); // 15  return 0; }

    好，再来看一个程序，加深印象：

#include <stdio.h>#include <limits.h>int main(){ char s[100] = {0}; sprintf(s, "%x", INT_MAX); printf("%s\n", s); // 7fffffff char str[100] = "7fffffff"; int i = 0; sscanf(str, "%x", &i); printf("%d\n", i); // 2147483647  return 0; }

 

           

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