GCC学习笔记

1 设置GCC命令行使用环境变量： SET GCC_HOME=E:\MinGW SET PATH=%PATH%;GCC_HOME SET LIBRARY_PATH=%GCC_HOME%\lib SET C_INCLUDE_PATH=%GCC_HOME%\include SET CPLUS_INCLUDE_PATH=%GCC_HOME%\include\c++\3.4.2;%GCC_HOME%\include\c++\3.4.2\mingw32;%GCC_HOME%\include\c++\3.4.2\backward;%GCC_HOME%\include 2 Demo.c #include int main() { printf("%6d",10); printf("|\n"); printf("%-6d",10); printf("|\n"); printf("%0.6d",10); printf("|\n"); printf("%7.6d",10); printf("|\n"); printf("%-7.6d",10);