优化 loop
fix
Merge branch 'develop' of github.com:jadedrip/silang into develop

Conflicts:
	ast_function.h
Merge branch 'develop' of coding.net:jadedrip/Silang into develop
补充
Merge branch 'develop' of github.com:jadedrip/silang into develop

Conflicts:
	Silang.cpp
Merge branch 'develop' of coding.net:jadedrip/Silang into develop
整合