将逗号分隔的整数列表转换为数组

Question

I'm trying to initialize an int array with a string that contains list of comma separated numbers. 我正在尝试使用包含逗号分隔数字列表的字符串初始化int数组。

I tried to directly assign string to array, 我试图直接将字符串分配给数组，

string sizes = "2,10,65,10"; 
int[] cols = new int[] { sizes };

but it obviously fails: 但它显然失败了：

cannot implicitly convert type 'string' to 'int' 无法将类型'string'隐式转换为'int'

How to convert string into sequence of integers? 如何将字符串转换为整数序列？

Answer 1

You want one line? 你要一行吗？ Use LINQ: 使用LINQ：

int[] cols = sizes.Split(',').Select(x => int.Parse(x)).ToArray();

Add using System.Linq; using System.Linq;添加using System.Linq; at the top of the file to make it work. 使其位于文件顶部。

Without LINQ you'd need a loop: 没有LINQ，您将需要循环：

var source = sizes.Split(',');
var cols = new int[source.Length];
for(int i = 0; i < source.Length; i++)
{
    cols[i] = int.Parse(source[i]);
}