2013年6月26日
Recursion to the rescue!
摘要： Given only putchar (no sprintf, itoa, etc.) write a routine putlong that prints out an unsigned long in decimal.Solution:void putlong(unsigned long n){ if( n<10) { putchar(n%10+'0'); } else { putlong(n/10); putchar(n%10+'0'); } } For exa... 阅读全文
posted @ 2013-06-26 03:23 pgu2 阅读(161) 评论(0) 推荐(0)