python nonlocal 问题

Posted 2023-03-16

class Employee:
empCount = 0
def __init__(self, name, salary):
self.name = name
self.salary = salary
nonlocal empCount
empCount += 1
def displayCount(self):
print( "Total Employee %d :" + str(Employee.empCount))
def displayEmployee(self):
print( "Name : " + self.name + ", Salary: " + str(self.salary))
emp = Employee("wang",1000)
emp.displayEmployee()
emp.displayCount()

报错。请问是什么问题，谢谢。
File "C:\Users\WangJY\Desktop\Auto Script\class.py", line 10
nonlocal empCount
^
SyntaxError: no binding for nonlocal 'empCount' found

参考技术A displayCount函数里，Employee.empCount调用有问题！由于是自身函数调用自身变量，所以应用self.empCount形式。本回答被提问者和网友采纳 参考技术B fnServerData": function ( sSource, aoData, fnCallback )
/* Add some extra data to the sender */
aoData.push( "name": "more_data", "value": "my_value" );
$.getJSON( sSource, aoData, function (json)
/* Do whatever additional processing you want on the callback, then tell DataTables */
fnCallback(json)
);