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Python3.6:print 語法錯誤

 print 語法錯誤

print  step, sess.run(W), sess.run(b) 

錯誤原因:

        python2.7    print 'hello '

         python3及以上 print('hello')

因此,修改為:

print (step, sess.run(W), sess.run(b))

即可,結果:

0 [[ 0.91210413 -0.04129256]] [ 0.04484042]
20 [[ 0.28546557  0.23647967]] [ 0.19098906]
40 [[ 0.15442868  0.23037918]] [ 0.25790811]
60 [[ 0.11846238  0.21355666]] [ 0.28405273]
80 [[ 0.10667393  0.20536564]] [ 0.29399648]
100 [[ 0.10247139  0.20204933]] [ 0.29774484]
120 [[ 0.10092307  0.20077361]] [ 0.29915351]
140 [[ 0.10034581  0.20029087]] [ 0.29968235]
160 [[ 0.10012968  0.20010923]] [ 0.2998808]
180 [[ 0.10004867  0.200041  ]] [ 0.29995525]
200 [[ 0.10001829  0.20001541]] [ 0.2999832]