javascript - js 将参数传递给函数,以便我可以对一些数字进行排序
问题描述
为什么当我将代码粘贴到 playcode.io 时,它的工作原理是这样的
function Nums(args) {
let n = Number(args[0]);
let p1 = 0;
let p2 = 0;
let p3 = 0;
let p4 = 0;
let p5 = 0;
for (let i = 1; i < n; i++) {
let currentNum = Number(args[i])
if (currentNum < 200) {
p1++;
} else if (currentNum < 400) {
p2++;
} else if (currentNum < 600) {
p3++;
} else if (currentNum < 800) {
p4++;
} else if (currentNum <= 1000) {
p5++;
}
}
console.log(p1);
console.log(p2);
console.log(p3);
console.log(p4);
console.log(p5);
}
Nums(["4", "1", "3", "999"]);
我想对一些数字进行排序,但不是从 0 开始的数组,为什么当我输入 4 作为第一个数字时计算它正确?如果我输入 2 它会放置我的 1 和 3 如果第一个变量和最后一个变量为空
解决方案
你好朋友,我让它按我想要的方式工作。首先抱歉,我解释得不够清楚。这是更正:
function Histogram(args) {
let n = Number(arguments[0]);
let v1 = 0.0;
let v2 = 0.0;
let v3 = 0.0;
let v4 = 0.0;
let v5 = 0.0;
for (let i = 1; i <= n; i++) {
let currentNum = Number(arguments[i])
if (currentNum < 200) {
v1++;
}
else if (currentNum < 400) {
v2++;
}
else if (currentNum < 600) {
v3++;
}
else if (currentNum < 800) {
v4++;
}
else if (currentNum < 1000) {
v5++;
}
}
console.log(v1);
console.log(v2);
console.log(v3);
console.log(v4);
console.log(v5);
}
Histogram('3','1', '2', '999');
现在我想知道为什么当我插入更多代码时它再次中断......
let p1Percantage = 0;
let p2Percantage = 0;
let p3Percantage = 0;
let p4Percantage = 0;
let p5Percantage = 0;
p1Percantage = (v1 / n * 100);
p1Percantage = (v2 / n * 100);
p1Percantage = (v3 / n * 100);
p1Percantage = (v4 / n * 100);
p1Percantage = (v5 / n * 100);
console.log(p1Percantage.toFixed(2) + "%");
console.log(p2Percantage.toFixed(2) + "%");
console.log(p3Percantage.toFixed(2) + "%");
console.log(p4Percantage.toFixed(2) + "%");
console.log(p5Percantage.toFixed(2) + "%");
应该显示最后一个显示为第一个的变量...预期输出
66.67% 0.00% 0.00% 0.00% 33.33%
主要的:
33.33% 0.00% 0.00% 0.00% 00.00%
整个程序应该按它们的值对正确变量中的直方图数组进行排序,并显示每个变量的百分比 p1Percantage = (v1 / n * 100); .
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