string uuid =System.Guid.NewGuid().ToString(); // 9af7f46a-ea52-4aa3-b8c3-9fd484c2af12
string uuidN=System.Guid.NewGuid().ToString("N"); // e0a953c3ee6040eaa9fae2b667060e09
string uuidD=System.Guid.NewGuid().ToString("D"); // 9af7f46a-ea52-4aa3-b8c3-9fd484c2af12
string uuidB=System.Guid.NewGuid().ToString("B"); // {734fd453-a4f8-4c5d-9c98-3fe2d7079760}
string uuidP=System.Guid.NewGuid().ToString("P"); // (ade24d16-db0f-40af-8794-1e08e2040df3)
string uuidX=System.Guid.NewGuid().ToString("X"); // {0x3fa412e3,0x8356,0x428f,{0xaa,0x34,0xb7,0x40,0xda,0xaf,0x45,0x6f}}The following table shows the format recognized parameter format specifier. "0" represents a number; hyphen ( "-"), braces ( "{", "}"), and brackets ( "(", ")") appears as shown in FIG.
| Specifier | Return value format |
|---|---|
| N | 32 characters: 00000000000000000000000000000000 |
| D | 32 is connected characters: 00000000-0000-0000-0000-000000000000 |
| B | The curly brackets 32 connected characters: {} 00000000-0000-0000-0000-000000000000 |
| P | Enclosed in parentheses 32-bit link characters: (00000000-0000-0000-0000-000000000000) |
| X | Hexadecimal values are enclosed in parentheses, the fourth value is a subset of eight hexadecimal value is also included in brackets: {x00000000 0 0 0 X0000 X0000, {0 0 x00,0 xOO xOO xOO 0, 0 x00,0 x00,0 x00,0 x00}} |