复合类型代码，包括数组，结构，指针，如何创建和存储文本字符串及如何使用C-风格字符数组和C++string类来处理文本输入和输出。-Compound type code, including arrays, structures, pointers, how to create and store text strings and how to use C-style character arrays and C++ string class to handle text input and o