VS2019中遇到错误error LNK2001: unresolved external symbol __imp__fscanf
error LNK2001: unresolved external symbol __imp__fscanf
解决办法:链接legacy_stdio_definitions.lib库
参考: https://stackoverflow.com/questions/32418766/c-unresolved-external-symbol-sprintf-and-sscanf-in-visual-studio-2015