Question

我已经定义了上面的函数mathsquiznormal等，但是当我运行我的代码时它实际上并没有运行我刚刚结束的函数，有人可以帮助我吗？

def quiz():
    quiztype = input("What subject would you like to be quizzed on? Maths or Physics?")
    quiztype = quiztype.lower
    quizdif = input("What difficulty  would you like for your test? Easy, Normal or Hard?")
    quizdif = quizdif.lower

    if quiztype == "maths" and quizdif == "easy":
        mathsquizeasy()
    elif quiztype == "maths" and quizdif == "normal":
        mathsquiznormal()
    elif quiztype == "maths" and quizdif == "hard":
        mathsquizhard()
    elif quiztype == "physics" and quizdif == "easy":
        physicstesteasy()

Answer 1

我可以指出一些可能导致问题的事情。

首先，你必须调用这样的低级方法quiztype = quiztype.lower()你现在正在做的是引用低级函数，而不是调用它。

其次，确保缩进正确。

def quiz():
    quiztype = input("What subject would you like to be quizzed on? Maths or Physics?")
    quiztype = quiztype.lower()
    quizdif = input("What difficulty  would you like for your test? Easy, Normal or Hard?")
    quizdif = quizdif.lower()

    if quiztype == "maths" and quizdif == "easy":
      print('easy math')
    elif quiztype == "maths" and quizdif == "normal":
      print ('normal math')
    elif quiztype == "maths" and quizdif == "hard":
      print ('hard math')
    elif quiztype == "physics" and quizdif == "easy":
      print ('easy physics')

quiz()

Answer 2

您需要使用var添加return函数quiztype。你需要...... quizdif和<template> <div> ... <form-input id="name" name="name" v-model="name">Name</form-input> <form-input id="birth-date" name="birth_date" type="date" v-model="birthDate">Date of Birth</form-input> <form-input id="avatar" name="avatar" type="file" v-on:triggerChange="onFileChange($event)">Avatar</form-input> <form-input id="mobile-number" name="mobile_number" type="number" v-model="mobileNumber">Mobile Number</form-input> ... </div> </template> <script> export default { data() { return { name: null, birthDate: null, mobileNumber: null } }, methods: { onFileChange(e) { let self = this this.validate(e.target.files[0]) .then(function(res) { let files = e.target.files, reader = new FileReader() // if any values if (files.length) { self.removeErrorMessageUpload() self.files = files[0] reader.onload = (e) => { self.updateProfileAvatar(e.target.result) } reader.readAsDataURL(files[0]) } }) .catch(function() { // do something in the case where the image is not valid self.displayErrorMessageUpload() }) }, validate(image) { let self = this return new Promise(function(resolve, reject) { // validation file type if (!self.allowableTypes.includes(image.name.split(".").pop().toLowerCase())) { reject() } // validation file size if (image.size > self.maximumSize) { reject() } // validation image resolution let img = new Image() img.src = window.URL.createObjectURL(image) img.onload = function() { let width = img.naturalWidth, height = img.naturalHeight window.URL.revokeObjectURL(img.src) if (width != 100 && height != 100) { reject() } else { resolve() } } }) }, } } </script>

Python在if语句中调用函数

2 个答案: