Question

我通常不会发布看似基本的东西，但整个下午我一直在困惑。每当我尝试运行此代码时，Maya都会给我一个奇妙的非特定“语法错误”，有人能看到这个问题吗？

import maya.cmds as cmds

def listSelMesh(*args):
    cmds.textScrollList("ab_meshList", en=1, ra=1)  #CLEAR THE OLD LIST
    trans = cmds.ls(sl=1)  #LIST SELECTED OBJECTS
    meshList = cmds.listRelatives(trans, c=1) or []  #GET ANY SHAPES
    shapeList = cmds.ls(meshList, t=1)  #GET ANY MESHES
    for trans in shapeList:
        cmds.textScrollList("ab_meshList", e=1, a=trans)  #APPEND THE CLEARED LIST WITH THE NEW SHAPES        

#Create the UI
def createUI(pWindowTitle, pApplyCallback):
    windowID = 'ba_skinExport'
    #If the UI is already open, delete the pre-existing instance
    if cmds.window(windowID, exists=True):
        cmds.deleteUI(windowID)
        
    cmds.window(windowID, title=pWindowTitle, sizeable=True, resizeToFitChildren=True)
        
    #Layout the columns in the UI
    cmds.columnLayout(adjustableColumn=True)
    form = cmds.formLayout()
    text1 = cmds.text(label='Selected mesh')
    shapeList = cmds.textScrollList("ab_meshList", p=form, h=75)
        
    btn1 = cmds.button(label='Load', command=listSelMesh)
    btn2 = cmds.button(label='Export', command=pApplyCallback)
    btn3 = cmds.button(label='Import', command=pApplyCallback)
    btn4 = cmds.button(label='Cancel', command=cancelCallback, w=85)
        
    cmds.showWindow()
        
    cmds.formLayout(form, e=1,
                    attachForm=((shapeList, "top", 10), (shapeList, "left", 100), (shapeList, "right", 10),
                                (btn1, "top", 92), (btn1, "left", 100), (btn1, "right", 10),
                                (text1, "top", 92), (text1, "left", 20),
                                (btn2, "top", 144), (btn2, "left", 100), (btn2, "right", 100),
                                (btn3, "top", 144), (btn3, "left", 100), (btn3, "right", 100),
                                (btn4, "top" 144), (btn4, "left", 10)
                    ))                    
                        
createUI('ba_skinExport', applyCallback)

Answer 1

更改此行，（错过了,）

(btn4, "top" 144)

到

(btn4, "top", 144)

Answer 2

正如itzmeontv所说，你错过了第40行的逗号。

（btn4，“top”，144）

我还想提一下，当我编码时，我通常会在Maya的“脚本编辑器历史记录”菜单下打开“错误中的行号”和“显示堆栈跟踪”。

如果没有显示错误中的显示堆栈跟踪或行号，您将只会看到一个模糊的错误消息，如下所示：

# Error: SyntaxError: invalid syntax #

在错误中启用行号时，您将在脚本编辑器中看到此输出：

# Error: line 1: invalid syntax #

请注意，报告遇到错误的第1行无法正确反映代码中的实际错误。

最后，当启用显示堆栈跟踪和错误中的行号时，您将在脚本编辑器的输出中看到更详细和详细的错误消息：

# Error: invalid syntax
#   File "<maya console>", line 40
# Error: invalid syntax
#   File "<maya console>", line 40
#     (btn4, "top" 144), (btn4, "left", 10)
#                    ^                 ^
# SyntaxError: invalid syntax #

你甚至会得到一个^符号，显示包含错误的代码行发生错误的位置。

我希望这可以帮助你更有效地追捕错误！

Maya中的语法错误

2 个答案: