Building to ensure sources are up-to-date
Selecting target:
Debug
Adding source dir: E:\my c program\pratice1\
Adding source dir: E:\my c program\pratice1\
Adding file: E:\my c program\pratice1\bin\Debug\pratice1.exe
Changing directory to: E:/MYCPRO~1/pratice1/.
Set variable: PATH=.;C:\MinGW\bin;C:\MinGW;C:\ProgramData\Oracle\Java\javapath;C:\Windows\System32;C:\Windows;C:\Windows\System32\wbem;C:\Windows\System32\WindowsPowerShell\v1.0;C:\Program Files\MATLAB\R2009a\bin;C:\Program Files\MATLAB\R2009a\bin\win32;f:\Program Files\MATLAB\R2010b\runtime\win32;f:\Program Files\MATLAB\R2010b\bin;E:\Program Files\Android\android-sdk\tools
Starting debugger: C:\MinGW\bin\gdb.exe -nx -fullname -quiet -args E:/MYCPRO~1/pratice1/bin/Debug/pratice1.exe
failed

找不出失败的原因。