nested

问题 What is wrong with my syntax? I want to be able to get the value "Genesis" with this info["Gen"]["name"] public var info = new Dictionary<string, Dictionary<string, string>> { {"Gen", new Dictionary<string, string> { {"name", "Genesis"}, {"chapters", "50"}, {"before", ""}, {"after", "Exod"} }}, {"Exod", new Dictionary<string, string> { {"name", "Exodus"}, {"chapters", "40"}, {"before", "Gen"}, {"after", "Lev"} }}}; 回答1: You cannot define a class field using var . Change var to Dictionary

问题 What is wrong with my syntax? I want to be able to get the value "Genesis" with this info["Gen"]["name"] public var info = new Dictionary<string, Dictionary<string, string>> { {"Gen", new Dictionary<string, string> { {"name", "Genesis"}, {"chapters", "50"}, {"before", ""}, {"after", "Exod"} }}, {"Exod", new Dictionary<string, string> { {"name", "Exodus"}, {"chapters", "40"}, {"before", "Gen"}, {"after", "Lev"} }}}; 回答1: You cannot define a class field using var . Change var to Dictionary

问题 I am trying to implement a basic nested loop in CL, but the Loop macro is resisting this. Basically, I would like to find all possible products of 3-digit numbers and accumulate them into a list. Here is my attempt: (loop for x downfrom 999 to 998 do (loop for y downfrom 999 to 998 collect (* x y))) The code above returns NIL for some reason. By the way, I realize that I only run down to 998, but this is done for testing purposes. What could I do to obtain a list like this: (999*999 999*998 .

问题 I am trying to implement a basic nested loop in CL, but the Loop macro is resisting this. Basically, I would like to find all possible products of 3-digit numbers and accumulate them into a list. Here is my attempt: (loop for x downfrom 999 to 998 do (loop for y downfrom 999 to 998 collect (* x y))) The code above returns NIL for some reason. By the way, I realize that I only run down to 998, but this is done for testing purposes. What could I do to obtain a list like this: (999*999 999*998 .

问题 I have an ordinary var express = require('express') Node express www page, using session, pug, etc as usual. My db calls var db = require('./scripts/myHappyMysqlScript') I'm naturally using mysql , so in the db script var mysql = require('mysql') So for example app.get('/catPhotos', (req, response) => { response.render('catPhotos.pug'); }) Say a page has a table showing something from the petNames database, app.get('/pets', function(req, res, next) { db.allPetNames(function(err, petsList) {

问题 I have an ordinary var express = require('express') Node express www page, using session, pug, etc as usual. My db calls var db = require('./scripts/myHappyMysqlScript') I'm naturally using mysql , so in the db script var mysql = require('mysql') So for example app.get('/catPhotos', (req, response) => { response.render('catPhotos.pug'); }) Say a page has a table showing something from the petNames database, app.get('/pets', function(req, res, next) { db.allPetNames(function(err, petsList) {

问题 was the idea of nested functions considered to be useless during the time of developing older c++ standard, because its usage is basically covered by another concept like object-oriented programming; or it wasn't implemented just as a matter of simplification? 回答1: Nested functions - to be useful - need the stack frame of the containing function as context. Look at this: class Foo() { void Tripulate() { int i=0; void Dip() { // ... } int x = 12; for(i=1; i<=3; ++i) { int z= 33; Dip(); // ...

问题 was the idea of nested functions considered to be useless during the time of developing older c++ standard, because its usage is basically covered by another concept like object-oriented programming; or it wasn't implemented just as a matter of simplification? 回答1: Nested functions - to be useful - need the stack frame of the containing function as context. Look at this: class Foo() { void Tripulate() { int i=0; void Dip() { // ... } int x = 12; for(i=1; i<=3; ++i) { int z= 33; Dip(); // ...

问题 was the idea of nested functions considered to be useless during the time of developing older c++ standard, because its usage is basically covered by another concept like object-oriented programming; or it wasn't implemented just as a matter of simplification? 回答1: Nested functions - to be useful - need the stack frame of the containing function as context. Look at this: class Foo() { void Tripulate() { int i=0; void Dip() { // ... } int x = 12; for(i=1; i<=3; ++i) { int z= 33; Dip(); // ...

问题 was the idea of nested functions considered to be useless during the time of developing older c++ standard, because its usage is basically covered by another concept like object-oriented programming; or it wasn't implemented just as a matter of simplification? 回答1: Nested functions - to be useful - need the stack frame of the containing function as context. Look at this: class Foo() { void Tripulate() { int i=0; void Dip() { // ... } int x = 12; for(i=1; i<=3; ++i) { int z= 33; Dip(); // ...