永无止境

Question

在这段代码中，我尝试调用一个函数。另一方面，它不按我希望的方式工作，因为它保持循环，即使我将循环条件 options_secondscenario [0] 从0更改为1环。我想要做的是移动到third_scenario（）函数。提前谢谢。

options_secondscenario = ['Whats going on out there?', 'So what now?']

def third_scenario():
    print "This is the third scenario"
    choiceselection2 = raw_input("> ")
    if choiceselection2 == 1:
        print "stay"
    else:
        print "leave"

def dead():
    print "You are dead"
    exit()

def second_scenario():
    print "Conversation 1"
    print "Conversation 2"
    print "Conversation 3"
    print options_secondscenario
    choices = options_secondscenario[0]
    while choices == options_secondscenario[0]:  
        choiceselection = raw_input("> ")   
        if choiceselection == 'Whats going on out there?':
            print "Conversation 4"
        elif choiceselection == 'Whats up':
            print "Nothing"        
        elif choiceselection == 'what is that':
            print "I dont know"
        elif choiceselection == 'is':
         dead()        
        else: 
         third_scenario()
    choices == options_secondscenario[1]

second_scenario()

Answer 1

您试图在循环后更改choices var（检查缩进）。所以while循环永远不会有机会达到这个陈述。

此外，您正在使用比较运算符==而非分配运算符=，如下所示：

choices = options_secondscenario[1]

该行应该在你的while循环中的某个地方。检查你的缩进。