...用 隐私策略和使用条款 技术支持 service@fun123.cn

...中的两个中括号可以用于定义有换行的字符串）a = 'alo\n123"' a = "alo\n123"" a = '\97lo\10\04923"' a = [[alo 123"]]复制代码 C语言中的NULL在Lua中是nil，比如你访问一个没有声明过的变量，就是nil，比如下面的v的值就是n...

...行的字符串） 1 2 3 4 5 a = 'alo\n123"' a = "alo\n123\"" a = '\97lo\10\04923"' a = [[alo 123"]] C语言中的NULL在Lua中是nil，比如你访问一个没有声明过的变量，就是nil，比如下面的v的值就是nil ...

第一次注册，fun123，发贴 请多多关照

...asd Certificate: Data: Version: 3 (0x2) Serial Number: 1237334757 (0x49c03ae5) Signature Algorithm: dsaWithSHA1 Issuer: C=AU, ST=Victoria, L=Melbourne, CN=foo.example.com Validity Not Before: Mar 18 00:05:57 2009 GMT Not After : Jun...

...用 隐私策略和使用条款 技术支持 service@fun123.cn

...sed (50%) instead of (-50%) on translateY... – jumps4fun Apr 13 '15 at 11:50 4 I love this soluti...

...用 隐私策略和使用条款 技术支持 service@fun123.cn

...u want to summarize only certain columns, use summarise_at or summarise_if functions. Alternatively, the purrrlyr package provides the same functionality: library(purrrlyr) df %>% slice_rows("grp") %>% dmap(mean) #> # A tibble: 3 x 5 #> grp a b c d #> <int>...

... npm, pip, maven etc. behind a corporate firewall under Windows - it's not fun. I'll try and keep this platform agnostic/aware where possible. HTTP_PROXY & HTTPS_PROXY HTTP_PROXY & HTTPS_PROXY are environment variables used by lots of software to know where your proxy is. Under Windows, lo...