//根据传入的概率数组中的概率，随机出一个数值，返回相对应数值的索引值
public static int RandomGetIndexInPercent(IList <float> percent)
{
if (MNullHelper.IsNullOrEmpty(percent))
{
return(MCommonHelper.IsFalse);
}
float totalPercent = 0f;
for (int i = 0; i < percent.Count; i++)
{
totalPercent += percent[i];
}
if (totalPercent <= 0f)
{
return(MCommonHelper.IsFalse);
}
float random = RandomExclusive(0, totalPercent);
float proportion = 0f;
for (int i = 0; i < percent.Count; i++)
{
proportion += percent[i];
if (random <= proportion)
{
return(i);
}
}
return(MCommonHelper.IsFalse);
}
//移除list中与data相同的所有数据
public static void RemoveMany <T>(List <T> list, IList <T> data)
{
if (MNullHelper.IsNullOrEmpty(list) || MNullHelper.IsNullOrEmpty(data))
{
return;
}
for (int i = 0; i < data.Count; i++)
{
for (int j = 0; j < list.Count; j++)
{
if (MNullHelper.IsEqual(list[j], data[i]))
{
list.RemoveAt(j);
break;
}
}
}
}