Maya脚本开发：实现选中物体名称在UI文本框显示

我是一名新手程序员，正在编写Maya脚本实现武器位置修复工具。目前遇到的问题是：点击「Set Character」按钮选中物体后，无法将选中物体的名称显示在下方的不可编辑textField组件中。以下是修正后的完整代码，解决了这个问题并修复了其他潜在bug：

关键修正点 #

• 按钮命令改为绑定类的实例方法，避免全局函数调用的问题
• 将nameSp改为实例方法，正确维护类的nameS属性，不再重新定义局部变量
• 在nameSp中直接更新textField，显示选中物体的名称
• 其他工具方法（weaponCor、noWeapon等）改为实例方法，统一访问类属性
• 增加选中判断和物体存在检查，避免无操作时报错

from maya import cmds
import pymel.core as pm

class drawUI(object):
    L = 'L'
    R = 'R'

    def __init__(self):
        # 检查窗口是否存在，避免重复创建
        if pm.window("WeaponPositionFixWin", exists=True):
            pm.deleteUI("WeaponPositionFixWin")
            
        self.myWindow = pm.window("WeaponPositionFixWin", title="Weapon Position Fix")
        pm.columnLayout("basicTools", adjustableColumn=True)
        
        pm.gridLayout("CreateGrid", numberOfRowsColumns=(1, 1), cellWidthHeight=(180, 30), parent="basicTools")
        
        pm.separator(style='in')
        pm.text(label="Select object")       
        self.ObjClass = pm.textField(text='Press Set Character', editable=False)
        # 绑定按钮到实例方法，用lambda传递self
        pm.button(c=lambda *args: self.nameSp(), label='Set Character', parent="CreateGrid")
        pm.separator(style='in')
        pm.button(c=lambda *args: self.weaponCor(side=self.R), label='Right Hand Weapon', parent="CreateGrid")
        pm.separator(style='in')
        pm.button(c=lambda *args: self.noRWeapon(side=self.R), label='Right Hand No Weapon', parent="CreateGrid")
        pm.separator(style='in')
        pm.button(c=lambda *args: self.weaponCor(side=self.L), label='Left Hand Weapon', parent="CreateGrid")
        pm.separator(style='in')
        pm.button(c=lambda *args: self.noWeapon(side=self.L), label='Left Hand No Weapon', parent="CreateGrid")
        pm.separator(style='in')
        
        pm.showWindow(self.myWindow)

    def nameSp(self):
        self.nameS = []
        selected = pm.ls(sl=True, fl=True)
        if not selected:
            pm.warning("请先选中一个物体！")
            return
            
        CH = selected[0]
        # 更新textField显示选中物体名称
        pm.textField(self.ObjClass, e=True, text=CH.name())
        
        # 处理引用命名空间
        if pm.referenceQuery(CH, isNodeReferenced=True):
            nameSpace = CH.split(':')[0] + ':'
            self.nameS.append(nameSpace)
            print(self.nameS[0])

    def weaponCor(self, side):
        if not hasattr(self, 'nameS') or not self.nameS:
            pm.warning("请先点击Set Character设置角色！")
            return
            
        Target = pm.ls(sl=True, fl=True)
        if not Target:
            pm.warning("请先选中目标物体！")
            return
        Target = Target[0]
        
        name = self.nameS[0]
        Weapon = name + side + '_Weapon_ctrl'
        if not pm.objExists(Weapon):
            pm.warning(f"未找到控制器：{Weapon}")
            return
            
        pm.cutKey(Weapon)
        par = pm.parentConstraint(Target, Weapon, mo=False)

        startTime = pm.playbackOptions(query=True, minTime=True)
        endTime = pm.playbackOptions(query=True, maxTime=True)

        pm.bakeResults(Weapon, simulation=True, t=(startTime, endTime))

        pm.showHidden(above=True)

        pm.delete(par)

    def noWeapon(self, side):
        if not hasattr(self, 'nameS') or not self.nameS:
            pm.warning("请先点击Set Character设置角色！")
            return
            
        pm.select(clear=True)
        name = self.nameS[0]
        src = name + 'Wrist_' + side
        trg = name + side + '_Weapon_ctrl'
        
        if not pm.objExists(src) or not pm.objExists(trg):
            pm.warning(f"未找到物体：{src} 或 {trg}")
            return

        pm.cutKey(trg)

        loc = pm.spaceLocator(n='reference')[0]

        pm.parent(loc, src)
        pm.xform(loc, t=(-0.08, 0, 0.035), ro=(0, 90, 180))

        par = pm.parentConstraint(loc, trg, mo=0)

        startTime = pm.playbackOptions(query=True, minTime=True)
        endTime = pm.playbackOptions(query=True, maxTime=True)

        pm.bakeResults(trg, simulation=True, t=(startTime, endTime))

        pm.showHidden(above=True)

        pm.delete(par, loc)

    def noRWeapon(self, side):
        if not hasattr(self, 'nameS') or not self.nameS:
            pm.warning("请先点击Set Character设置角色！")
            return
            
        pm.select(clear=True)
        name = self.nameS[0]
        src = name + 'Wrist_' + side
        trg = name + side + '_Weapon_ctrl'
        
        if not pm.objExists(src) or not pm.objExists(trg):
            pm.warning(f"未找到物体：{src} 或 {trg}")
            return

        pm.cutKey(trg)

        loc = pm.spaceLocator(n='reference')[0]

        pm.parent(loc, src)
        pm.xform(loc, t=(0.08, 0, -0.035), ro=(0, 90, 180))

        par = pm.parentConstraint(loc, trg, mo=0)

        startTime = pm.playbackOptions(query=True, minTime=True)
        endTime = pm.playbackOptions(query=True, maxTime=True)

        pm.bakeResults(trg, simulation=True, t=(startTime, endTime))

        pm.showHidden(above=True)

        pm.delete(par, loc)

test = drawUI()

内容的提问来源于stack exchange，提问作者Valeriya Fedoseeva