Thank you very much…
I don’t install EPEL( the package manager).
I do these:
sudo yum -y install epel-release
sudo yum -y install mongo-c-driver
this time, It can download success.
And it print :
Installed:
mongo-c-driver.x86_64 0:1.3.6-1.el7
Dependency Installed:
libbson.x86_64 0:1.3.5-6.el7 mongo-c-driver-libs.x86_64 0:1.3.6-1.el7
Complete!