1
I think that my confusion is also related to my misunderstanding of the tier definition. What purpose does the '' placeholder serve in defining the tier variable as such?
function printTriangle(length) {
for(var i = 1; i <= length; i++) {
var tier = '';
for(var j = 0; j < i; j++) {
tier += '*';
}
console.log(tier);
}
}
//printTriangle(3);
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**
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此外,如何增加第三個循環使輸出對準金字塔像這樣?我已經看到這被用作一個謎題/面試的提示,但我認爲基本的理解(如果你不能說明的話,我只是深入瞭解這一點)會使三角形過渡到金字塔相當簡單。是否需要第二個'for'循環,如果是這樣,爲什麼?
*
* *
* * *
* * * *
* * * * *
* * * * * *
* * * * * * *
* * * * * * * *
function printPyramid(length) {
for(var i = 1; i <= length; i++) {
var tier = '';
for(var j = length - i; j > 0; j--) {
tier += ' ';
}
for(var k = 0; k < i; k++) {
tier += '* ';
}
console.log(tier);
}
}
//printPyramid(10);
預先感謝您!
感謝您的明確迴應! – AndrewC
你好!很高興我們可以提供幫助。 –