函数如下
System.Guid.NewGuid().ToString(format)
格式符
返回值的格式
N 32位纯字符:
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx,如:e92b8e30a6e541f6a6b9188230a23dd2
D 由连字符分隔的32位数字:
xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx,如:e92b8e30-a6e5-41f6-a6b9-188230a23dd2
B 括在大括号中、由连字符分隔的32位数字:
{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx},如:{e92b8e30-a6e5-41f6-a6b9-188230a23dd2}
P 括在圆括号中、由连字符分隔的32位数字:
(xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx),如:(e92b8e30-a6e5-41f6-a6b9-188230a23dd2)