提交时间:2019-10-04 19:16:34

运行 ID: 1172

#include<iostream> int main(){ char i='a',b='z'; while(i<='z'){ printf("%c",i); i=i+1; if(i=='n') printf("\n"); } printf("\n"); while(b>='a'){ printf("%c",b); b=b-1; if(b=='m') printf("\n"); } return 0; }