我正在使用R，我有一个网页，希望JSON格式的数据能够返回我想要的内容。但是，当我设置JSON对象并将其粘贴到我的URL时，R会将转义字符（反斜杠）添加到JSON对象中的双引号。我想删除反斜杠：
R> library(jsonlite)
R> lst <- list(key = 'value')
R> json <- toJSON(lst)
R> url <- paste0('http://some.url.com?data=', json)
R> url
[1] "http://some.url.com?data={\"key\":[\"value\"]}"
我的sessionInfo（）
R version 3.4.2 (2017-09-28)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Ubuntu 14.04.5 LTS
Matrix products: default
BLAS: /usr/lib/libblas/libblas.so.3.0
LAPACK: /usr/lib/lapack/liblapack.so.3.0
locale:
[1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C
[3] LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8
[5] LC_MONETARY=sv_SE.UTF-8 LC_MESSAGES=en_US.UTF-8
[7] LC_PAPER=sv_SE.UTF-8 LC_NAME=sv_SE.UTF-8
[9] LC_ADDRESS=sv_SE.UTF-8 LC_TELEPHONE=sv_SE.UTF-8
[11] LC_MEASUREMENT=sv_SE.UTF-8 LC_IDENTIFICATION=sv_SE.UTF-8
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] XML_3.98-1.9 jsonlite_1.5 httr_1.3.1 rj_2.1.0-13
loaded via a namespace (and not attached):
[1] compiler_3.4.2 R6_2.2.2 tools_3.4.2 rj.gd_2.1.0-2