还未完成。。。与设想不符
gcc -shared -fPIC -o ./mylib/csapp.so ./tools/csapp.c -lpthread gcc -shared -fPIC -o ./mylib/mytools.so ./tools/mytools.c -lpthread
gcc -shared -fPIC -o ./mylib/dynamicprint.so ./dynatest/dynamicprint.c
gcc -o ./bin/myecho myecho.c ./mylib/*.so -ldl