如何将字符串的特定字符解析为整数？

Question

string abc = "07:00 - 19:00"
x  = int.Parse(only first two characters) // should be 7
y  = int.Parse(only 9th and 10th characters) // should be 19

我怎么能这样说呢？

Answer 1

使用字符串类的Substring方法提取所需的字符集.

string abc = "07:00 - 19:00";
x  = int.Parse(abc.Substring(0,2)); // should be 7
y  = int.Parse(abc.Substring(8,2)); // should be 19