27 lines
350 B
C
27 lines
350 B
C
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#include<stdio.h>
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int main()
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{
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float a,b;
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char c;
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scanf("%f %c %f",&a,&c,&b);
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switch (c) {
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case '+':
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printf("=%.2f",a+b);
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break;
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case '-':
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printf("=%.2f",a-b);
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break;
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case '*':
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printf("=%.2f",a*b);
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break;
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case '/':
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printf("=%.2f",a/b);
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break;
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default:
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printf("无效运算符");
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break;
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}
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return 0;
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}
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