QCAD 3.20.1 x64 7z Archive QCAD is a free, open source application for computer aided drafting (CAD) in two dimensions (2D). With QCAD you can create technical drawings such as plans for buildings, interiors, mechanical parts or schematics and diagr
gcc-4.8.0 gcc-4.9.0 gcc-5.1.0 gcc-6.1.0 gcc-7.1.0 gcc-8.1.0 gcc-9.1.0.7z 已验证可用，请放心下载。GCC used to stand for the GNU C Compiler, but since the compiler supports several other languages aside from C, it now stands for the GNU Compiler Collection.
