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#include <iostream>
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#include <bitset>
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using namespace std;
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int main()
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{
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char x = 0b01011011; // char 正好是八位
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cout << "原值为: " << bitset<8>(x) << endl;
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int n;
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cout << "请输入要修改的位: ";
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cin >> n;
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x &= ~(0x1 << n); // 作用: 将第 n 位设置为 0
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cout << "修改后为: " << bitset<8>(x) << endl;
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return 0;
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} |