禁止左右轉
最近在台中的路上
看到跟台北一樣的標誌
左線到禁止左轉 右線道禁止右轉 中間禁止左右轉
雖然是很莫名其妙
不過想必是為了交通好吧
只是......
為什麼不設計成好幾個燈
用微電腦控制交通號誌 作更精緻的轉換
紅綠燈不再是只有走跟停 還有右轉燈 左轉燈 等多久
然後路口的四個方向 也都不需要對稱 每個功能方向經過細緻的安排
自然就可以輪流的紓解交通了
很簡單吧
總比禁止左右轉好的多 車子在路上的時間變多 車子繞來繞去 反而會更糟糕吧
網路筆記 File Upload on PHP Server in Android
http://sunil-android.blogspot.tw/2013/09/file-upload-on-php-server-in-android.html http://www.webtech.tw/info.php?tid=24 For this using multipart boundary. So here question is arises what is multipart boundary and why use it? The Content-Type field for multipart entities requires one parameter, "boundary", which is used to specify the encapsulation boundary. The encapsulation boundary is defined as a line consisting entirely of two hyphen characters ("-", decimal code 45) followed by the boundary parameter value from the Content-Type header field. Thus, a typical multipart Content-Type header field might look like this: Content-Type: multipart/mixed; boundary=gc0p4Jq0M2Yt08jU534c0p This indicates that the entity consists of several parts, each itself with a structure that is syntactically identical to an RFC 822 message, except that the header area might be completely empty, and that the parts are each preceded by the line --gc0p4Jq0M2Yt08jU534c0p. Things to Note...
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