摘要： QVariant相当于一个包含大多数Qt数据类型的联合体将数据存储为一个Private结构体类型的成员变量d：1 QVariant::QVariant(Type type)2 { create(type, 0); }1 void QVariant::create(int type, const vo... 阅读全文

摘要： 1 typedef signed char qint8; /* 8 bit signed */ 2 typedef unsigned char quint8; /* 8 bit unsigned */ 3 typedef short qint16; /* 16 bit signed */ 4 ty... 阅读全文

摘要： 链接：http://www.codeproject.com/Articles/13852/BasicExcel-A-Class-to-Read-and-Write-to-Microsoft参考：OpenOffice's Excel file format (http://sc.openoffice.... 阅读全文