摘要： 浮点数精度问题，c/c++ 浮点类型数据，计算时有精度误差。例：float fVal = 1.30;int iVal = fVal *100;int iRet = (int)(fVal * (iVal *1.0));printf("fVal= %f, iRet=%d \n", fVal ,iRet );输出结果：fVal= 1.300000, iRet=129上面例子中，怎样才能输出130？答：例：float fVal = 1.30;fVal = fVal + 0.00001; //精度修正int iVal = fVal *100;int iRet = (int)(fVal 阅读全文