下面程序的运行结果是()。#include #include int main(){float x=2;printf("%5.2f\n", sqrt(x));return 0;}
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下面程序的运行结果是( )。#include #include int main(){float x=2, y=5;printf("%8.1f\n", pow(x,y));return 0;}
从键盘输入大写字母B按回车键,程序运行结果是( )。#include int main(){putchar( getchar( )+2 );putchar(10);return 0;}
从键盘输入大写字母A按回车键,程序运行结果是( )。#include int main ( ){char ch;scanf("%c", &ch);ch=ch+32;printf("%d\n", ch);return 0;}
从键盘输入大写字母D按回车键,程序运行结果是( )。#include int main ( ){char ch;ch=getchar();printf("%d\n", ch);return 0;}