题目内容
在划线处________填写适当内容完成程序。本程序当输入字符是数字时输出字符串 “number”，否则输出“none”#include "stdio.h"int check_number(char x){if ((x >= '0') && (x <= '9'))return 1;else return 0;}int main(void){ char ch;while(1){ scanf("%c", &ch);if(ch=='#') break;if(________)printf("number\n");elseprintf("none\n");}return 0;}
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