Question

import os
import time

class student:
    def __init__(self):
    self.name=""

    def inp(self):
        print "This is student record program"
        self.Name = raw_input("Enter the name: ")
        self.ID = input("Enter the ID :")
        self.Age = raw_input("Enter the age: ")
        self.Mark = [input("Enter marks one by one ") for i in range(3)]
        self.total = sum(self.Mark)

    def dis(self):
        print "Name: ".format(self.Name)
        print "ID: ".format(self.ID)
        print "Age: ".format(self.Age)
        for i in range(3):
            print "Mark :".format(self.Mark[i])
        print "Total: ".format(self.total)

stu1=student()
stu1.inp()
stu1.dis()

这是我的代码。请帮我。我试图获取学生的详细信息并使用课程进行打印但输出是空白的我是python的新手我不知道我哪里出错了。

Answer 1

    print "Name: ".format(self.Name)

format字符串需要大括号来指示插入值应该去的位置。

    print "Name: {}".format(self.Name)

添加括号后，输出将为：

This is student record program
Enter the name: a
Enter the ID :1
Enter the age: 2
Enter marks one by one 1
Enter marks one by one 2
Enter marks one by one 3
Name: a
ID: 1
Age: 2
Mark: 1
Mark: 2
Mark: 3
Total: 6

Answer 2

您可以使用python字符串格式化运算符 %s %d %f etc

String Formatting Operators

def dis(self):
    print "Name: %s" % self.Name
    print "ID: %s" %self.ID
    print "Age: %s" % self.Age
    for i in range(3):
        print "Mark : %s" % self.Mark[i]
    print "Total: %s" % self.total

我的python程序得到输入和输出是空白的

2 个答案: