When you build a project, Unity only includes the Shader Variants in the build that the Materials of the project are currently using. Because Unity has to compile Shader Variants at build time, changing keywords on a Material at runtime can require using a Variant that Unity hasn't built.

虽然我是有点滥用了但是一个coroutine yield过150次就会运行出问题这是不是有点……

好啦是我不该在coroutine里面while loop还loop400多次还在loop内instantiate