尝试调试这个，但它超出了我的范围。我正在为学校编制时间表，使用jQuery来append()生成的jQuery(document).ready(function($) {
/* Schedule */
last = "lesson";
lesson = 71;
test = 13;
inv = 7;
function m10() {
if (lesson % 10 == 0) {
return true;
} else {
return false;
}
}
function m5() {
if (lesson % 5 == 0) {
return true;
} else {
return false;
}
}
function pMath1() {
if (m10() == false && last !== "test") {
lesson++;
last = "lesson";
return "Lesson " + lesson;
} else if (m5() == true && last !== "test") {
test++;
last = "test";
return "Test " + test;
} else if (m10() == true && last == "test") {
inv++;
last = "inv";
return "Inv " + inv;
} else {
console.log("pMath1 doesn't work");
}
}
function pMath2() {
if (m10() == false) {
lesson++;
last = "lesson";
return "Lesson " + lesson;
} else if (m5() == true && last !== "test") {
test++;
last = "test";
return "Test " + test;
} else if (m10() == true && last == "test") {
inv++;
last = "inv";
return "Inv " + inv;
} else {
console.log("pMath2 doesn't work");
}
}
$(".view-id-school .single-day td:gt(6)").each(function() {
var datePrep = $(this).attr("data-date");
var dateSplit = datePrep.split("-");
var dateStr = new Date(dateSplit[0], dateSplit[1], dateSplit[2]);
var dateStr2 = new Date(2016, 12, 03);
var classN = $(this).attr("headers");
if (classN == "Monday" || classN == "Wednesday" || classN == "Friday") {
$(this).removeClass("no-entry");
var mathC = "M: " + pMath1() + ", " + pMath2();
} else if (classN == "Tuesday" || classN == "Thursday") {
$(this).removeClass("no-entry");
var mathC = "M: " + pMath1();
} else {
mathC = "";
};
content = mathC;
if (dateStr > dateStr2) {
$(this).find(".inner").empty().append('<div class="calendar monthview"><div class="views-field views-field-title"><span class="field-content">' + content + '</span></div><div class="cutoff" /></div></div></div>');
}
});
});
HTML到。{/ p>
这是我的代码：
jQuery(document).ready(function ($) {
/* Schedule */
dateStr2 = new Date(2016, 12, 03);
last = "lesson";
lesson = 71; //Lesson you want to start on minus 1
test = 13; //Test you want to start on minus 1
inv = 7; //Investigation you want to start on minus 1
function m10 () { if ( lesson % 10 == 0) { return true; } else { return false; } }
function m10M1 () { if ( ( (lesson % 10) - 1) == 0 && last == "inv" ) { return true; } else { return false; } }
function m5 () { if ( lesson % 5 == 0) { return true; } else { return false; } }
function pMath1 () {
if ( m10M1() ) { //Check if Lesson is x1 (e.g. 81) and minus 1 from it
last = "lesson";
return "Lesson " + lesson;
} else if ( m10() == false && last !== "test") { //Add Lesson
lesson++;
last = "lesson";
return "Lesson " + lesson;
} else if ( m5() == true && last !== "test") { //Add Test
test++;
last = "test";
return "Test " + test;
} else if ( m10() == true && last == "test") { //Add Inv
inv++;
lesson++;
last = "inv";
return "Inv " + inv;
} else {
console.log("pMath1 doesn't work");
}
}
function pMath2 () {
if ( m10M1() ) { //Check if Lesson is x1 (e.g. 81) and minus 1 from it
last = "lesson";
return "Lesson " + lesson;
}else if ( m10() == false ) { //Add Lesson
lesson++;
last = "lesson";
return "Lesson " + lesson;
} else if ( m5() == true && last !== "test") { //Add Test
test++;
last = "test";
return "Test " + test;
} else if ( m10() == true && last == "test") { //Add Inv
inv++;
lesson++;
last = "inv";
return "Inv " + inv;
} else {
console.log("pMath2 doesn't work");
}
}
$(".view-id-school .single-day td:gt(6)").each(function () {
var datePrep = $(this).attr("data-date");
var dateSplit = datePrep.split("-");
var dateStr = new Date(dateSplit[0], dateSplit[1], dateSplit[2]);
var classN = $(this).attr("headers");
if ( classN == "Monday" || classN == "Wednesday" || classN == "Friday") {
$(this).removeClass("no-entry");
var mathC = "M: " + pMath1 () + ", " + pMath2 ();
} else if (classN == "Tuesday" || classN == "Thursday") {
$(this).removeClass("no-entry");
var mathC = "M: " + pMath1 ();
} else {
mathC = "";
};
content = mathC;
if ( dateStr > dateStr2 ) {
$(this).find(".inner").empty().append('<div class="calendar monthview"><div class="views-field views-field-title"><span class="field-content">' + content + '</span></div><div class="cutoff" /></div></div></div>');
}
console.log("Last: " + last + " <br /> Lesson: " + lesson + " <br /> inv: " + inv + " <br /> test: " + test + " <br /> " + "Content: " + content);
});
});
更新：问题是pMath1（）始终返回＆＃34; Inv 8＆＃34;和pMath2（）仍未定义
更新2 ：好的，让它使用此代码。特别感谢JS Fiddle和Xufox提供的所有帮助：
import UIKit
class MenuViewController: UIViewController, UICollectionViewDataSource, UICollectionViewDelegate, UICollectionViewDelegateFlowLayout {
lazy var collectionView: UICollectionView = {
let layout = UICollectionViewFlowLayout()
layout.scrollDirection = .horizontal
layout.minimumLineSpacing = 0
let cv = UICollectionView(frame: .zero, collectionViewLayout: layout)
cv.backgroundColor = .red
cv.dataSource = self
cv.delegate = self
cv.isPagingEnabled = true
return cv
}()
let cellId = "cellId"
override func viewDidLoad() {
super.viewDidLoad()
view.addSubview(collectionView)
//use autolayout instead
collectionView.anchorToTop(top: view.topAnchor, left: view.leftAnchor, bottom: view.bottomAnchor, right: view.rightAnchor)
collectionView.register(PageCell.self, forCellWithReuseIdentifier: cellId)
}
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return 4
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: cellId, for: indexPath as IndexPath)
return cell
}
func collectionView(collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAtIndexPath indexPath: NSIndexPath) -> CGSize {
return CGSize(width: view.frame.width, height: view.frame.height)
}
}
extension UIView {
func anchorToTop(top: NSLayoutYAxisAnchor? = nil, left: NSLayoutXAxisAnchor? = nil, bottom: NSLayoutYAxisAnchor? = nil, right: NSLayoutXAxisAnchor? = nil) {
anchorWithConstantsToTop(top: top, left: left, bottom: bottom, right: right, topConstant: 0, leftConstant: 0, bottomConstant: 0, rightConstant: 0)
}
func anchorWithConstantsToTop(top: NSLayoutYAxisAnchor? = nil, left: NSLayoutXAxisAnchor? = nil, bottom: NSLayoutYAxisAnchor? = nil, right: NSLayoutXAxisAnchor? = nil, topConstant: CGFloat = 0, leftConstant: CGFloat = 0, bottomConstant: CGFloat = 0, rightConstant: CGFloat = 0) {
translatesAutoresizingMaskIntoConstraints = false
if let top = top {
topAnchor.constraint(equalTo: top, constant: topConstant).isActive = true
}
if let bottom = bottom {
bottomAnchor.constraint(equalTo: bottom, constant: -bottomConstant).isActive = true
}
if let left = left {
leftAnchor.constraint(equalTo: left, constant: leftConstant).isActive = true
}
if let right = right {
rightAnchor.constraint(equalTo: right, constant: -rightConstant).isActive = true
}
}
}
答案 0 :(得分：1)
好的，关于函数和return语句的基本内容是，如果你在函数的任何一点调用return，那么在return语句不执行之后，该函数的任何代码都会保留;
因此，对于pMath1函数，inv = 8的初始值;
如果您注意到pMath1（）函数，
{{1}}
所以，如果你按照我的意见，你会明白该做什么，但是，我正在调整pMath1（），
{{1}}
好的，现在我们的inv变量不应该坚持8，因为我们知道如何使用return，你可以在pMath2（）尝试同样的事情，因为它有同样的错误。玩得开心：）