C# 类型转换相关
public void TypeConvert() { int a = 12; double b = 35.5; Console.WriteLine((int)b);//显示类型转换 //使用convert、parse强制类型转换 String s = "123"; int i = int.Parse(s); int j = Convert.ToInt32(s); Console.WriteLine("{0} {1}",i,j); //该方式也是将数字内容的字符串转换为int类型,但是该方式比int.Parse(string s) 好一些,它不会出现异常。最后一个参数result是输出值,如果转换成功则输出相应的值,转换失败则输出0。 string s1 = "abcd"; string s2 = "1234"; int c, d; bool bo1 = int.TryParse(s1, out c); Console.WriteLine(s1 + " " + bo1 + " " + c); bool bo2 = int.TryParse(s2, out d); Console.WriteLine(s2 + " " + bo2 + " " + d); String str = "abc"; char ch = 'a'; Console.WriteLine(str.ToUpper()); Console.WriteLine(b.ToString()); Console.WriteLine(ch.CompareTo('d')); }