新建个Tchar图表,然后写入下边语句 Chart1.Series[0].Clear;
Chart1.Series[0].Add(67540,'c');
//Chart1.Series[0].Add(69541,'a');报错:
invalid pointer operationAccess violation at address 004BF023 in module 'project1.exe'. Write of address 00E6C000.-----------------------------------------------------------------------
但是这样却正常?????
Chart1.Series[0].Clear;
Chart1.Series[0].Add(67540,'c');
Chart1.Series[0].Add(69541,'a');
Chart1.Series[0].Add(67540,'c');
//Chart1.Series[0].Add(69541,'a');报错:
invalid pointer operationAccess violation at address 004BF023 in module 'project1.exe'. Write of address 00E6C000.-----------------------------------------------------------------------
但是这样却正常?????
Chart1.Series[0].Clear;
Chart1.Series[0].Add(67540,'c');
Chart1.Series[0].Add(69541,'a');
Chart1.Series[0].Clear;
Chart1.Series[0].Add(67540,'c');
Chart1.Series[0].Add(69541,'a');