forrtl: severe (59): list-directed I/O syntax error, unit -4, file conin$

小歪 · 发表于 2025-1-13 16:40:15

就是一个简单的二项方程求根的问题，用VS编译器没有报错，运行的时候出现这种错误，请问一下出现这种情况，一般怎么解决？谢谢大家！
请输入二次方程的系数 a, b, c:
1，4，1
forrtl: severe (59): list-directed I/O syntax error, unit -4, file CONIN$
Image             PC             Routine          Line       Source
libifcoremdd.dll 00007FF90950FE19  Unknown             Unknown  Unknown
libifcoremdd.dll 00007FF90950EF7E  Unknown             Unknown  Unknown
fangchenggen.exe 00007FF6487010F8  QUADRATIC_SOLVER          7  fangchenggen.f90
fangchenggen.exe 00007FF64870191B  Unknown             Unknown  Unknown
fangchenggen.exe 00007FF648701E49  Unknown             Unknown  Unknown
fangchenggen.exe 00007FF648701D6E  Unknown             Unknown  Unknown
fangchenggen.exe 00007FF648701C2E  Unknown             Unknown  Unknown
fangchenggen.exe 00007FF648701EBE  Unknown             Unknown  Unknown
KERNEL32.DLL    00007FF959F97374  Unknown             Unknown  Unknown
ntdll.dll       00007FF95A8DCC91  Unknown             Unknown  Unknown
请按任意键继续. . .