Python implements the student management system and python student management system
A simple student management system written in python to practice the python syntax.
You can run python 2.7 on windows and linux.
#! /Usr/local/bin/python #-*-coding: UTF-8-*-import OS import re # define Student class
Student Information Management System (5)-add, delete, modify, query, and student information management systemThe student information management system is a set of additions, deletions, modifications, and queries. Next we will analyze them separately.1. Add(Add a record, taking the frmAddclassinfo form as an example)First, make sure that the text boxes cannot be
Student A am I is flipped into I am a student.Method:(1) First Flip all the strings, which becomes "I ma a tneduts",(2) When the space is encountered, the space before the paragraph of the character is flipped, and then down judgment.#include #include #include Char* Fanzhuan (Char*Str) {ASSERT (Str);Char*l =Str;Char*r =Str; while(*r! =' + ') {r++; } while(L 1) {CharTMP = *L; *l = * (r1); * (r1) = tmp; l++; r--; } L =Str; R =Str; while(*r!
Flip the string sequence//such as: I am a student to: Student a am i#include The "C language" flips the string order, such as: I am a student turns: Student a AM I
3, design a student class student, and carry on the test
Requirements are as follows:
1 Student class contains name, score two attributes
2 Define two methods for each property, one for setting the value, and the other for getting the value.
3 The Student class defines a parameterless construction method and a construc
There is a character array whose contents are: "Studentaami", please change the contents of the array to "iamastudent". Requirement: library functions cannot be used. Only a limited space can be opened (the number of spaces is independent of the length of the string). #include Change the contents of the array "Student a Am I" to "I am a student"
;= @GPACutOff) HonorsINNER JOINStudents onHonors.studentid=Students.studentid;The above method first defines a Gpacutoff variable, calculates the first 10% GPA, and then iterates through all the GPA in the subsequent code, returning all rows greater than or equal to Gpacutoff. Instead of using MySQL to write code that implements the same functionality, refer to my previous blog Department Top three salaries,Department highest Salary and Second Highest Salary, in a more concise manner as follows:
#include This article from "Thanksgiving" blog, reproduced please contact the author!The contents of a character array are: "Student a Am I", please change the contents of the array to "I am a student".
(arr) {//10 elements per line display elements in an array for(vari = 0; i i) {document.write (Arr[i]+ " "); if((i + 1)% 10 = = 0) {document.write ("); } } } functionGenarray (length) {//An array that produces the specified number of elements vararr = []; for(vari = 0; i i) {Arr[i]= Math.floor (Math.random () * 101); } returnarr; } vargrades = Genarray (100); Prarray (grades); varGradedistro =NewBST (); for(vari = 0; i //add elements from an array to a
Select distinct from tblstudent, Tblscore where in (the select from where Tblscore. Stuid='1001' ) and Tblstudent. Stuid=tblscore. StuidThe answer is provided in two ways;1:Select DistInct from Tblstudent St Inner Join on St. Stuid=SC. Stuid where in (SelectfromWhere stuid= '1001')2:-- ----nested subqueries Select from tblstudent Where inch ( SelectDistinctfromWhere in ( SelectfromWhere stuid='1001') ) 50 Query Series-11th query: query has at least one class with the
Tags: exam score shell scholarship if If Based on the score of the student examination, the score is 1-59 and the score is to be retake 60-79. Good 80-90. Excellent 90-100. The scholarship is obtained. #! /Bin/bash Read-P"Enter your score"Sta If [-Z $ sta] Then Echo"You did not enter the score" Read-P"Enter your score"Sta If [-Z $ sta] Then Echo"You did not enter the score" Exit Fi Fi If [$ sta-ge 1] >/dev/null [$ sta-Le 59] Then E
Today, the University student Program design competition in Heilongjiang Province is over. I have no recollection of what I and my teammates have done for this province, I am here to review a wave, my teammates 51 did not rest in the laboratory training, and I have to evade the training because of things in the family, although this is not necessary, but also to review.
Here are some summary and lessons from the provincial races. This time the provin
This text has been reprinted online, and some SQL statements are suitable for use in application systems. Some "reports" have a heavier feeling, mainly to review the former.
This text has been reprinted online, and some SQL statements are suitable for use in application systems. Some "reports" are more likely to be used, mainly to review the former.
50 common SQL statements
Student (S #, Sname, Sage, Ssex) Stude
Student (s #, sname, sage, ssex) Student table
Course (C #, cname, T #) Curriculum
SC (s #, C #, score) Orders table
Teacher (T #, tname) Instructor table
Problem:
1. query the student IDs of all students whose "course scores are higher than" course scores;
Select a. s # From (select s #, score from SC where C # = '001'),
(Select s #, score from SC where
50 common SQL statements
Student (S #, Sname, Sage, Ssex) Student tableCourse (C #, Cname, T #) CurriculumSC (S #, C #, score) Orders tableTeacher (T #, Tname) Instructor table
Problem:1. query the student ID of all students whose score is higher than that of the "002" course;Select a. S # from (select s #, score from SC where C # = '001') a, (select s #, scoreF
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