Initial commit: C++ courseware
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### 参考答案
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#### **一、 填空题**
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1. `char`
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2. 单引号
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3. `66`
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4. `32`
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5. `5`
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6. `'+'`
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#### **二、 单项选择题**
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1. C
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2. C
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3. B (字符'C'的ASCII码是67,加1后是68,68对应的字符是'D')
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4. B
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5. B
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6. A
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#### **三、 判断题**
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1. × (一个是字符,一个是数字,它们的ASCII码和数值都不同)
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2. √
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3. √
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4. × (从'A'到'Z',ASCII码是递增的)
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5. √
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6. × (`char` 只能存放单个字符)
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