Git中从远程的分支获取最新的版本到本地有这样2个命令:
1.  git fetch :相当于是从远程获取最新版本到本地,不会自动merge
<p style="margin-top: 0px; margin-bottom: 10px; padding-top: 0px; padding-bottom: 0px;"><span style="line-height: 19px; font-family: 'Trebuchet MS', Tahoma, Arial; font-size: 13px;"><span class="pln" style="line-height: 23px; color: rgb(0, 0, 0);">    </span></span><br style="line-height: 23px;" /><span class="pln" style="line-height: 23px; color: rgb(0, 0, 0);">git fetch origin master</span><br style="line-height: 23px;" /><span class="pln" style="line-height: 23px; color: rgb(0, 0, 0);">git log </span><span class="pun" style="line-height: 23px; color: rgb(102, 102, 0);">-</span><span class="pln" style="line-height: 23px; color: rgb(0, 0, 0);">p master</span><span class="pun" style="line-height: 23px; color: rgb(102, 102, 0);">..</span><span class="pln" style="line-height: 23px; color: rgb(0, 0, 0);">origin</span><span class="pun" style="line-height: 23px; color: rgb(102, 102, 0);">/</span><span class="pln" style="line-height: 23px; color: rgb(0, 0, 0);">master</span><br style="line-height: 23px;" /><span class="pln" style="line-height: 23px; color: rgb(0, 0, 0);">git merge origin</span><span class="pun" style="line-height: 23px; color: rgb(102, 102, 0);">/</span><span class="pln" style="line-height: 23px; color: rgb(0, 0, 0);">master</span></p>
    以上命令的含义:
   首先从远程的origin的master主分支下载最新的版本到origin/master分支上
   然后比较本地的master分支和origin/master分支的差别
   最后进行合并
   上述过程其实可以用以下更清晰的方式来进行:
<p style="margin-top: 0px; margin-bottom: 10px; padding-top: 0px; padding-bottom: 0px;"><span style="font-family: 'Trebuchet MS', Tahoma, Arial; font-size: 12px; line-height: 23px;"><span style="line-height: 19px;"><span class="pln" style="line-height: 23px; color: rgb(0, 0, 0);">git fetch origin master</span><span class="pun" style="line-height: 23px; color: rgb(102, 102, 0);">:</span><span class="pln" style="line-height: 23px; color: rgb(0, 0, 0);">tmp</span></span></span>
<span style="font-family: 'Trebuchet MS', Tahoma, Arial; font-size: 12px; line-height: 23px;"><span style="line-height: 19px;"><span class="pln" style="line-height: 23px; color: rgb(0, 0, 0);">git diff tmp </span></span></span>
<span style="font-family: 'Trebuchet MS', Tahoma, Arial; font-size: 12px; line-height: 23px;"><span style="line-height: 19px;"><span class="pln" style="line-height: 23px; color: rgb(0, 0, 0);">git merge tmp</span></span></span></p>
    从远程获取最新的版本到本地的test分支上
   之后再进行比较合并
2.  git pull :相当于是从远程获取最新版本并merge到本地
<p style="line-height: 23px; margin-top: 0px; margin-bottom: 10px; padding-top: 0px; padding-bottom: 0px;"><span class="pln" style="color: rgb(0, 0, 0);">git pull origin master</span></p>
上述命令其实相当于git fetch 和 git merge
在实际使用中,git fetch更安全一些
因为在merge前,我们可以查看更新情况,然后再决定是否合并
结束
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