为此,一种简单的方法就是仅在派生某个线程时才生成一个随机数,并将该随机数追加到所有输出行上。
A simple approach to this is to just generate a random number when a thread is spawned and prepend that number to all output lines.
最后一个 sed 示例使用 = 命令输出行号,然后再次使用 sed 过滤生成的输出,以模拟使用 nl 命令对行进行编号的效果。
Our final sed example uses the = command to print line numbers and then filter the resulting output through sed again to mimic the effect of the nl command to number lines.
出行生成模型:交通小区通达性和便利程度在很大程度上影响着居民的交通生成量,传统的出行生成预测模型无法反映这一特征。
This model demonstrates how the socioeconomic variable, traffic serving level and the socioeconomic variable around traffic zones contributes to the trip generations.
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