Qt 在*.pro文件之间传递变量

我有以下*.pro文件：

领导解决方案的人

# head - pro file :
TEMPLATE = subdirs
CONFIG = qt thread ordered

# save root directory
PROJECT_ROOT_DIRECTORY = $$_PRO_FILE_PWD_
message("Master pro file path : ["$${PROJECT_ROOT_DIRECTORY}"]") // output : "Master pro file path : [/Path/To/Directory]"

# project subdirs
SUBDIRS += PROJECT1

及

如何在两个pro文件之间传递变量（此处变量为

PROJECT\u ROOT\u目录

）

编辑：

# head - pro file :
TEMPLATE = subdirs
CONFIG = qt thread ordered

# configuration
include(config.pri)
message("Master pro file path : ["$${PROJECT_ROOT_DIRECTORY}"]") # output : "Master pro file path : [/Path/To/Directory]"

# project subdirs
SUBDIRS += PROJECT1

# save root directory
PROJECT_ROOT_DIRECTORY = $$PWD // not $$_PRO_FILE_PWD_!

# PROJECT1 - pro file :
TEMPLATE = app

# configuration
include(../config.pri)  # note that you need to put "../" before the .pri path
message("Master pro file path : ["$${PROJECT_ROOT_DIRECTORY}"]") # should now output :  "Master pro file path : [/Path/To/Directory]"

---

这是与此相同的问题，但我看不出“另一个选项是”答案对我有什么帮助。

您可以将变量定义放在

.pri

文件中，然后将其包含在所需的所有

.pro

文件中。请注意，您需要告诉子目录中的

.pro

文件查找

.pri

文件的路径

head.pro:

# head - pro file :
TEMPLATE = subdirs
CONFIG = qt thread ordered

# configuration
include(config.pri)
message("Master pro file path : ["$${PROJECT_ROOT_DIRECTORY}"]") # output : "Master pro file path : [/Path/To/Directory]"

# project subdirs
SUBDIRS += PROJECT1

# save root directory
PROJECT_ROOT_DIRECTORY = $$PWD // not $$_PRO_FILE_PWD_!

# PROJECT1 - pro file :
TEMPLATE = app

# configuration
include(../config.pri)  # note that you need to put "../" before the .pri path
message("Master pro file path : ["$${PROJECT_ROOT_DIRECTORY}"]") # should now output :  "Master pro file path : [/Path/To/Directory]"

config.pri:

# head - pro file :
TEMPLATE = subdirs
CONFIG = qt thread ordered

# configuration
include(config.pri)
message("Master pro file path : ["$${PROJECT_ROOT_DIRECTORY}"]") # output : "Master pro file path : [/Path/To/Directory]"

# project subdirs
SUBDIRS += PROJECT1

# save root directory
PROJECT_ROOT_DIRECTORY = $$PWD // not $$_PRO_FILE_PWD_!

# PROJECT1 - pro file :
TEMPLATE = app

# configuration
include(../config.pri)  # note that you need to put "../" before the .pri path
message("Master pro file path : ["$${PROJECT_ROOT_DIRECTORY}"]") # should now output :  "Master pro file path : [/Path/To/Directory]"

project1/project1.pro:

# head - pro file :
TEMPLATE = subdirs
CONFIG = qt thread ordered

# configuration
include(config.pri)
message("Master pro file path : ["$${PROJECT_ROOT_DIRECTORY}"]") # output : "Master pro file path : [/Path/To/Directory]"

# project subdirs
SUBDIRS += PROJECT1

# save root directory
PROJECT_ROOT_DIRECTORY = $$PWD // not $$_PRO_FILE_PWD_!

# PROJECT1 - pro file :
TEMPLATE = app

# configuration
include(../config.pri)  # note that you need to put "../" before the .pri path
message("Master pro file path : ["$${PROJECT_ROOT_DIRECTORY}"]") # should now output :  "Master pro file path : [/Path/To/Directory]"

---

好的，听起来不错。因此，这始终是一个解决问题，您不能在

*.pro

文件之间按值传递变量？至少我不知道这样做的方法。也许有更好的解决办法。如果其他人发布了更好的解决方案，请毫不犹豫地移动接受。。。这可能是一个在qt-5之后在.qmake.conf中定义变量的解决方案。您重新发布了吗？如果你没有得到正确的答案，你为什么要把它设为被接受呢？@patrickbass是的，你是对的，它不是很一致。但是，如果有更好的答案出现，我会提出接受