编写程序当输入：a，b，c时，输出的结果为：C，D，E。（输入字符编码代码scanf） 编写一个c程序，输入a,b,c,d四个数，输出其中最大者。（...
\u7528\u4e00\u4e2ascanf\u51fd\u6570\u5b9e\u73b0\u8fde\u7eed\u8f93\u51655\u4e2a\u5b57\u7b26(\u5b58\u5165\u53d8\u91cfa,b,c,d,e\u4e2d),\u7136\u540e\u8f93\u51fa\u52a0\u5bc6\u540e\u5b57\u7b26#include void main(){char a,b,c,d,e;scanf("%c%c%c%c%c",&a,&b,&c,&d,&e);a-=2;b+=4;c-=2;d+=4;e-=2;printf("%c%c%c%c%c",a,b,c,d,e);}\u8fd0\u884c\u793a\u4f8b\uff1a
#includeint main(){ int max=-10000000,temp,j; for(j=0;jmax)max=temp; } printf("\u6700\u5927\u6570\u662f%d\n",max); return 0;}
你的printf和scanf语法没搞懂吧
首先指出你这里面的几个问题:
应该先定义变量才可以做相应操作，没说明c1,c2,c3类型应为char
输入scanf用法：scanf(" %c,%c,%c",&c1,&c2,&c3);
实现大写：大小写之间ASCLL值差为32，小写字母=大写字母+32，用c1=c1-32即可;c2,c3同上；
输出printf用法:printf（"%c,%c,%c",c1,c2,c3);
希望以上错误可以改正 ，继续加油，毕竟写出了int main（）和return 0 的用法。
正确编写：
#include<stdio.h>
int main()
{
char c1,c2,c3;
scanf(" %c,%c,%c",&c1,&c2,&c3);c1=c1-32;（如果运行错误用char a,b,c;a,b,c代替等号前面c1,c2,c3）
c2=c2-32;
c3=c3-32;
printf（"%c,%c,%c",c1,c2,c3);
return 0;
}
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