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@ -1,32 +1 @@
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# computer
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#include <stdio. h>
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#include <stdlib. h>//定义杂项函数及内存分配函数
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int main(){//表示有返回值
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float a;
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float b;
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char ch;
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printf("请输入你需要的计算方式\n");
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scanf("%c",&ch);
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printf("请输入第一个数\n");
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scanf("%f",&a);
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printf("请输入第二个数\n");
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scanf("%f",&b);
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switch(ch){//处理多分支结构的条件选择语句
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case '+'://选择
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printf("加法的结果是%f\n",a+b);
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break;//退出switch语句
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case '-':
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printf("减法的结果是%f\n",a-b);
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break;
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case '*':
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printf("乘法的结果是%f\n",a*b);
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break;
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case '/':
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printf("除法的结果是%f\n",a/b);
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break;
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case '%':
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printf("求模的结果是%f\n",a%b);
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break;
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}
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return 0;//程序退出
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}
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