write.csv 只是在底层调用 write.table，并带有适当的参数.所以你可以通过 3 次调用 write.table 来实现你想要的.

write.csv just calls write.table under the hood, with appropriate arguments. So you can achieve what you want with 3 calls to write.table.

write.table(df1, "filename.csv", col.names=TRUE, sep=",")
write.table(df2, "filename.csv", col.names=FALSE, sep=",", append=TRUE)
write.table(df3, "filename.csv", col.names=FALSE, sep=",", append=TRUE)

实际上，您可以通过使用 rbind 将数据帧组合成单个 df，然后调用 write.csv 一次来避免整个问题.

Actually, you could avoid the whole issue by combining your data frames into a single df with rbind, then calling write.csv once.

write.csv(rbind(df1, d32, df3), "filename.csv")