如何从下面的数据帧中删除第一行,并将index = 0的行设置为header?谢谢。 0 ... 8 ---> row without index to exclude which is header of current dataframe
0 id ... date ---> row to set as header
1 1 ... 2020-01-23
2 2 ... 2020-01-23
3 3 ... 202
我的回答就像
"preferentialManufacturingRegionCode":
“布列斯特”、“维捷布斯克”、“戈梅尔”、“明斯克”
How to convert List of strings to objects that in respone will be like
"preferentialManufacturingRegionCode": [
{
"value"
我用过
cargo install --git https://github.com/steveklabnik/rustbook.git
要成功安装“锈本”,但当我运行rustbook时,会得到一个错误:
rustbook: error while loading shared libraries: librustdoc-c0dcaea09a16c7ec.so: cannot open shared object file: No such file or directory
但是我可以找到这个.so文件。
./.rustup/toolchains/nightly-x86_64-unknown
下面是我想出的取消设置数字中最低1位的函数。 unset_lowest_bit:
# NUM & (NUM-1)
# All binary digits to the left of the first 1 will remain unchanged, so & itself=itself
# Any zeros to the right of the first 1 will stay zero, since anything & 0 = 0
# And finally, the first 1 will go to zero, si