tee() splits a stream into two branches. It seems straightforward, but the implementation requires buffering: if one branch is read faster than the other, the data must be held somewhere until the slower branch catches up.
If this code was a really hot part of your program, you might be
，更多细节参见Line官方版本下载
本月早些時候，紐約聯邦儲備銀行也證實了耶魯大學的研究結果，他們發現美國企業和消費者承擔了近90%的額外關稅。
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“L3相比L2，多了更多安全冗余。”北汽一位路试人员表示，L3必须具备相应的安全冗余，比如双芯片并行。当一个芯片“死机”，另一个芯片也能接管车辆。“刹车转向也都是双传感器、双ECU、双电源的设计。”