Query NCBI Gene via E-utilities/Datasets API. Search by symbol/ID, retrieve gene info (RefSeqs, GO, locations, phenotypes), batch lookups, for gene annotation and functional analysis.

通过E-utilities/Datasets API查询NCBI Gene。按符号/ID搜索，获取基因信息（RefSeq、GO、位置、表型），支持批量查询，用于基因注释和功能分析。