The present invention relates to tricyclic compounds, and pharmaceutical compositions of the same, that are inhibitors of one or more FGFR enzymes and are useful in the treatment of FGFR-associated diseases such as cancer.本發明係關於三環化合物及其醫藥組合物,其為一或多種FGFR酶之抑制劑且適用於治療FGFR相關疾病,諸如癌症。