解決辦法

用mwget代替wget，mwget支持多線程下載

git : https://github.com/shengliwang/mwget

m -> multithread

下載mwget

先安裝或更新組件：

sudo apt install build-essential sudo apt upgrade intltool sudo apt install libssl-dev

通過安裝包安裝：

wget http://jaist.dl.sourceforge.net/project/kmphpfm/mwget/0.1/mwget_0.1.0.orig.tar.bz2 tar -xjvf mwget_0.1.0.orig.tar.bz2 cd mwget_0.1.0.orig ./configure sudo make sudo make install

出現的問題

ftpplugin.cpp: In member function ‘virtual int FtpPlugin::get_info(Task*)’: ftpplugin.cpp:85:19: error: ‘strlen’ was not declared in this scopeptr = new char[strlen(task->url.get_file()) + 2];^~~~~~ ftpplugin.cpp:85:19: note: suggested alternative: ‘mbrlen’ptr = new char[strlen(task->url.get_file()) + 2];^~~~~~mbrlen ftpplugin.cpp: In member function ‘int FtpPlugin::recursive_get_dir_list(Task&, Ftp*, const char*, const char*, FILE*, FILE*, off_t*)’: ftpplugin.cpp:219:14: error: ‘strlen’ was not declared in this scopecurrdir[strlen(currdir) - 1] = '\0';^~~~~~ ftpplugin.cpp:219:14: note: suggested alternative: ‘mbrlen’currdir[strlen(currdir) - 1] = '\0';^~~~~~mbrlen ftpplugin.cpp:256:7: error: ‘strcmp’ was not declared in this scopeif(strcmp(ptr, ".") == 0 || strcmp(ptr, "..") == 0) continue;^~~~~~ ftpplugin.cpp:256:7: note: suggested alternative: ‘StrDup’if(strcmp(ptr, ".") == 0 || strcmp(ptr, "..") == 0) continue;^~~~~~StrDup

有好幾個文件都報了這個錯，在對應的.cpp中添加

#include <string.h>

可以解決。

* 后來發現這些報錯的.cpp 都include了utils.h，所以也可以只在utils.h 中添加 #include <string.h>

使用方法

mwget [URL]

查看使用方式：

mwget -h

eg，修改線程數：

mwget -n 16 [URL] #16線程下載（默認為4）

總結

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