foo.cc: In function 'void FindMax(int*, int)':
foo.cc:7:6: warning: variable 'b_Max' set but not used [-Wunused-but-set-variable]
  int b_Max,b_xb;
      ^~~~~
foo.cc:13:50: warning: 'b_xb' may be used uninitialized in this function [-Wmaybe-uninitialized]
  cout<<"1、输出数组中最大值的下标："<<b_xb;
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~

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