28 lines
727 B
C++
28 lines
727 B
C++
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// 从键盘输入字符
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#include <iostream>
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#include <cstdlib>
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#include <cstring>
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using namespace std;
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int main()
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{
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char name[50] = ""; // 字符数组的初始值建议给一个空字符串, 即 ""
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cout
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<< "请输入姓名: ";
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cin >> name;
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// sizeof(字符数组)计算数组分配内存空间的大小
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cout << "你输入的内容为" << name << ", 它的字节长度为" << sizeof(name) << endl;
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// strlen(字符数组)输出第一个`\0`之前的字符个数
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cout << "字符个数为" << strlen(name) << endl;
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int i = 0;
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while (name[i])
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{
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cout << name[i++] << "\t";
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}
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cout << (int)name[i] << endl; // 0 ,用于验证`\0`的 ASCII 码为 0
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return 0;
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}
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