Variable Name: uuid
Output Format: 12345678-1234-4444-a123-000000000000
Minimum Value: 111111111111
Maximum Value: 999999999999
Seed for Random function:${__Random(1,10,)} //如果指定为一个固定值,则每次迭代,各个线程得到的随机值都会相同
Per Thread (User): True //每个线程生成一个随机数
iteration: 1
thread: 1
sampler 1: VALUE_1-1
sampler 2: VALUE_1-1
...
thread: 2
sampler 1: VALUE_2-1
sampler 2: VALUE_2-1
...
...
iteration: 2
thread: 1
sampler 1: VALUE_1-2
sampler 2: VALUE_1-2
...
thread: 2
sampler 1: VALUE_2-2
sampler 2: VALUE_2-2
...
...