cin.getline(sentence, 20);
getline 函数使用两个用逗号分隔的参数。第一个参数是要存储字符串的数组的名称。第二个参数是数组的大小。当 cin.getline 语句执行时,cin 读取的字符数将比该数字少一个,为 null 终止符留出空间。这样就不需要使用 setw 操作符或 width 函数。以上语句最多可读取 19 个字符,null 终止符将自动放在数组最后一个字符的后面。// This program demonstrates cinT s getline function // to read a line of text into a C-string. #include <iostream>、 using namespace std; int main() { const int SIZE = 81; char sentence[SIZE]; cout << "Enter a sentence: "; cin.getline (sentence, SIZE); cout << "You entered " << sentence << endl; return 0; }程序输出结果:
Enter a sentence: To be, or not to be, that is the question.
You entered To be, or not to be, that is the question.
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