遇到Implicit Declaration of function 'glBindVertexArrayOES' is invalid in c99 和 Implicit Declaration of function 'glBindVertexArrayOES' is invalid in c99
等的错误警告时需要引入系统文件
#import <OpenGLES/ES2/glext.h>
遇到Implicit Declaration of function 'glBindVertexArrayOES' is invalid in c99 和 Implicit Declaration of function 'glBindVertexArrayOES' is invalid in c99
等的错误警告时需要引入系统文件
#import <OpenGLES/ES2/glext.h>