c#特殊的输出方式
// Format a negative integer or floating-point number in various ways.
Console.WriteLine("Standard Numeric Format Specifiers");
Console.WriteLine(
"(C) 货币: . . . . . . . . {0:C}\n" +
"(D) 十进制小数:. . . . . . . . . {0:D}\n" +
"(E) 科学计数写法: . . . . . . . {1:E}\n" +
"(F) 固定点:. . . . . . . {1:F}\n" +
"(G) 普通的:. . . . . . . . . {0:G}\n" +
" (默认的):. . . . . . . . {0} (default = 'G')\n" +
"(N) 数字显示: . . . . . . . . . {0:N}\n" +
"(P) 百分比:. . . . . . . . . {1:P}\n" +
"(R) 双程的: . . . . . . . {1:R}\n" +
"(X) 16进制的:. . . . . . . {0:X}\n",
-123, -123.45f);
// Format the current date in various ways. 时间的显式的方式
Console.WriteLine("Standard DateTime Format Specifiers");
Console.WriteLine(
"(d) Short date: . . . . . . . {0:d}\n" +
"(D) Long date:. . . . . . . . {0:D}\n" +
"(t) Short time: . . . . . . . {0:t}\n" +
"(T) Long time:. . . . . . . . {0:T}\n" +
"(f) Full date/short time: . . {0:f}\n" +
"(F) Full date/long time:. . . {0:F}\n" +
"(g) General date/short time:. {0:g}\n" +
"(G) General date/long time: . {0:G}\n" +
" (default):. . . . . . . . {0} (default = 'G')\n" +
"(M) Month:. . . . . . . . . . {0:M}\n" +
"(R) RFC1123:. . . . . . . . . {0:R}\n" +
"(s) Sortable: . . . . . . . . {0:s}\n" +
"(u) Universal sortable: . . . {0:u} (invariant)\n" +
"(U) Universal full date/time: {0:U}\n" +
"(Y) Year: . . . . . . . . . . {0:Y}\n",
thisDate);
// Format a Color enumeration value in various ways.
Console.WriteLine("Standard Enumeration Format Specifiers");
Console.WriteLine(
"(G) General:. . . . . . . . . {0:G}\n" +
" (default):. . . . . . . . {0} (default = 'G')\n" +
"(F) Flags:. . . . . . . . . . {0:F} (flags or integer)\n" +
"(D) Decimal number: . . . . . {0:D}\n" +
"(X) Hexadecimal:. . . . . . . {0:X}\n",
Color.Green);
