32 lines
768 B
C++
32 lines
768 B
C++
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// 计算某一个学科的平均成绩
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#include <iostream>
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#include <cstdlib>
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using namespace std;
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int main()
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{
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int score[5][4] = {
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{56, 75, 78, 89},
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{89, 98, 76, 67},
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{88, 88, 77, 66},
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{67, 78, 89, 90},
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{98, 97, 96, 95}};
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string subject[] = {"语文", "数学", "化学", "物理"};
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float avg = 0.0f;
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// 每个人的平均成绩
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for (int j = 0; j < 4; j++)
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{
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avg = 0.0f; // 重置平均成绩, 目的: 避免上一次的平均成绩影响到这一次的平均成绩
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for (int i = 0; i < 5; i++)
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{
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avg += score[i][j] / 5.0f; // 求出某一个学科的平均成绩
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}
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cout << subject[j] << "的平均成绩: " << avg << endl;
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}
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return 0;
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}
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