C # collects several ToString () formats

stringR1 = -. ToString ("C");//￥1,200.00
stringr2 = -. ToString ("D3");//025
stringR3 =2500.1231. ToString ("F2");//2500.12
stringR4 =20000.5. ToString ("N");//20,000.50
stringR5 =0.5. ToString ("P");//50%
stringR6 = Guid.NewGuid (). ToString ("N");//32-bit number: 00000000000000000000000000000000
stringR7 = Guid.NewGuid (). ToString ("D");//32-bit digits separated by hyphens: 00000000-0000-0000-0000-000000000000
stringR8 = Guid.NewGuid (). ToString ("P");//32 digits separated by hyphens enclosed in parentheses: (00000000-0000-0000-0000-000000000000)
stringR9 = Guid.NewGuid (). ToString ("B");//32-digit number separated by a hyphen, enclosed in curly braces: {00000000-0000-0000-0000-000000000000}
stringR10 = Guid.NewGuid (). ToString ("X");//four hexadecimal values are enclosed in curly braces, where the fourth value is also a subset of the eight hexadecimal values enclosed in curly braces:{0x00000000, 0x0000, 0x0000,{0x00, 0x00, 0x00, 0x00 , 0x00, 0x00, 0x00}}

C # collects several ToString () formats