Easy Life

Varchar 对每个英文(ASCII)字符都占用2个字节，对一个汉字也只占用两个字节char 对英文(ASCII)字符占用1个字节，对一个汉字占用2个字节Varchar 的类型不以空格填满，比如varchar(100)，但它的值只是"qian",则它的值就是"qian"而char 不一样，比如char(100),它的值是"qian"，而实际上它在数据库中是"qian "(qian后共有96个空格

//设置SQL语句            insertstr="insert into userinfo(name,password,email,phone,mobile,post,address) VALUES(";            insertstr +=  this._name.Trim() + ",";            insertstr +=  this._passwo