标签：mes ima orm img col inf letter 技术 cpp
a<-matrix(11:30,ncol = 2) a colnames(a)<-LETTERS[1:2] a plot(a,col="red") rnorm(10,mean = 20 , sd = 3) round(rnorm(10,mean = 20 , sd = 3),1) LETTERS[1:27]
标签：mes ima orm img col inf letter 技术 cpp
原文地址：https://www.cnblogs.com/ispenser/p/12309621.html
