modified some comments

test=develop

paddle/fluid/operators/interpolate_op.cc

@@ -128,7 +128,7 @@ class InterpolateOpMaker : public framework::OpProtoAndCheckerMaker {
           
           Nearest neighbor interpolation:
           
-          case 1:
+          if:
               align_corners = False
 
               input : (N,C,H_in,W_in)
@@ -137,7 +137,7 @@ class InterpolateOpMaker : public framework::OpProtoAndCheckerMaker {
               H_out = \left \lfloor {H_{in} * scale_{}factor}} \right \rfloor
               W_out = \left \lfloor {W_{in} * scale_{}factor}} \right \rfloor
 
-          case 2:
+          else:
               align_corners = True
 
               input : (N,C,H_in,W_in)

python/paddle/fluid/layers/nn.py

@@ -6570,7 +6570,7 @@ def image_resize(input,
       
       Nearest neighbor interpolation:
       
-      case 1:
+      if:
           align_corners = False
 
           input : (N,C,H_in,W_in)
@@ -6579,7 +6579,7 @@ def image_resize(input,
           H_out = \left \lfloor {H_{in} * scale_{}factor}} \right \rfloor
           W_out = \left \lfloor {W_{in} * scale_{}factor}} \right \rfloor
 
-      case 2:
+      else:
           align_corners = True
 
           input : (N,C,H_in,W_in)
@@ -6866,7 +6866,7 @@ def resize_nearest(input,
       
       Nearest neighbor interpolation:
       
-      case 1:
+      if:
           align_corners = False
 
           input : (N,C,H_in,W_in)
@@ -6875,7 +6875,7 @@ def resize_nearest(input,
           H_out = \left \lfloor {H_{in} * scale_{}factor}} \right \rfloor
           W_out = \left \lfloor {W_{in} * scale_{}factor}} \right \rfloor
 
-      case 2:
+      else:
           align_corners = True
 
           input : (N,C,H_in,W_in)

python/paddle/fluid/tests/unittests/test_nearest_interp_op.py

@@ -208,7 +208,7 @@ class TestNearestNeighborInterpCase1Uint8(TestNearestInterpOpUint8):
         self.input_shape = [2, 3, 128, 64]
         self.out_h = 120
         self.out_w = 50
-        self.align_corners = False
+        self.align_corners = True
 
 
 class TestNearestNeighborInterpCase2Uint8(TestNearestInterpOpUint8):