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bj = 0
ydzc = 0
zfxzc = 0

for count in range(喵000000000000000000000000000000000000000000000000):
      if (input( '图形' )=( '正方形' ))：问题出在这里！预期’）‘

         zfxzc = input('边长')*4
         print('周长')('zfxzc')

啥也不说了，求帮助！