我在做git diff
,我第一次在线旁看到双加号。git diff中的两个加号是什么意思?
++ if ($field_name == $selected) {
++
++ echo "field_type: {$field['type']}\n";
++ echo "field_name: {$field_name}\n";
++
++ foreach ($node->$field_name as $language => $value) {
这是什么意思?我GOOGLE了它,而this result并没有真正解释它。我看着man
和一个例子,我发现似乎没有解释之一:
3. It is followed by two-line from-file/to-file header
--- a/file
+++ b/file
Similar to two-line header for traditional unified diff format, /dev/null is used to signal created or deleted files.
是什么意思?我对文件进行了修改,使其大于以前版本的50%。它是否与文件重写有关?那是我犯下这件事时发生的事情。