html5网页制作+javascript
利用javascript自定义一个学生对象，其属性有学号、姓名、性别、出生日期、一门课程的成绩（满分100分），其方法有学习（学习一次加一次分）、计算年龄（计算此时的年龄）。对学生对象进行实例化后，打印其学习成绩和年龄，请给答案谢谢。
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<title>计ç®</title>
<meta name="viewport" content="width=device-width, initial-scale=1" />
</head>
<body>
<script>
function student(serialNumber, name, sex, birthday, score) {
this.serialNumber = serialNumber;
this.name = name;
this.sex = sex;
this.birthday = birthday;
this.score = score;
}
student.prototype.getAge = function() {
var birthday = new Date(this.birthday.replace(/-/g, "\/"));
var d = new Date();
var age =
d.getFullYear() -
birthday.getFullYear() -
(d.getMonth() < birthday.getMonth() ||
(d.getMonth() == birthday.getMonth() &&
d.getDate() < birthday.getDate())
? 1
: 0);
return age;
}
student.prototype.study = function() {
this.score++;
}
var obj = new student(1, 'å¼ ä¸', 'ç·', '1990-01-01', 65);
console.log('å ¥åï¼', 1, 'å¼ ä¸', 'ç·', '1990-01-01', 65);
console.log('å¹´é¾ï¼', obj.getAge());
obj.study();
console.log('å¦ä¹ ï¼', obj.score);
obj.study();
console.log('å¦ä¹ ï¼', obj.score);
var obj2 = new student(2, 'çäº', '女', '1970-01-01', 85);
console.log('å ¥åï¼', 2, 'çäº', '女', '1970-01-01', 85);
console.log('å¹´é¾ï¼', obj2.getAge());
obj2.study();
console.log('å¦ä¹ ï¼', obj2.score);
obj2.study();
console.log('å¦ä¹ ï¼', obj2.score);
obj2.study();
console.log('å¦ä¹ ï¼', obj2.score);
</script>
</body>
</html>
<html>
<head>
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<title>计ç®</title>
<meta name="viewport" content="width=device-width, initial-scale=1" />
</head>
<body>
<script>
function student(serialNumber, name, sex, birthday, score) {
this.serialNumber = serialNumber;
this.name = name;
this.sex = sex;
this.birthday = birthday;
this.score = score;
}
student.prototype.getAge = function() {
var birthday = new Date(this.birthday.replace(/-/g, "\/"));
var d = new Date();
var age =
d.getFullYear() -
birthday.getFullYear() -
(d.getMonth() < birthday.getMonth() ||
(d.getMonth() == birthday.getMonth() &&
d.getDate() < birthday.getDate())
? 1
: 0);
return age;
}
student.prototype.study = function() {
this.score++;
}
var obj = new student(1, 'å¼ ä¸', 'ç·', '1990-01-01', 65);
console.log('å ¥åï¼', 1, 'å¼ ä¸', 'ç·', '1990-01-01', 65);
console.log('å¹´é¾ï¼', obj.getAge());
obj.study();
console.log('å¦ä¹ ï¼', obj.score);
obj.study();
console.log('å¦ä¹ ï¼', obj.score);
var obj2 = new student(2, 'çäº', '女', '1970-01-01', 85);
console.log('å ¥åï¼', 2, 'çäº', '女', '1970-01-01', 85);
console.log('å¹´é¾ï¼', obj2.getAge());
obj2.study();
console.log('å¦ä¹ ï¼', obj2.score);
obj2.study();
console.log('å¦ä¹ ï¼', obj2.score);
obj2.study();
console.log('å¦ä¹ ï¼', obj2.score);
</script>
</body>
</html>
温馨提示：内容为网友见解，仅供参考
第1个回答 2019-04-08
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>test</title>
<script type="text/javascript">
function Student(id, name, gender, birthday, score) {
this.id = id;
this.name = name;
this.gender = gender;
this.birthday = birthday;
this.score = score;
this.study = function () {
this.score = this.score === 100 ? this.score : this.score += 1;
};
this.getAge = function () {
return new Date().getFullYear() - new Date(birthday).getFullYear()
};
}
var student = new Student(1,'张三','男','1996-2-12',20);
console.log('学习成绩:'+student.score);
console.log('年龄:'+student.getAge());
student.study();
console.log('学习成绩:'+student.score); //学分加1
student.study();
console.log('学习成绩:'+student.score); //学分加1
</script>
<body>
请打开浏览器控制台查看日志输出效果。
</body>
</html>本回答被提问者采纳
<html lang="en">
<head>
<meta charset="UTF-8">
<title>test</title>
<script type="text/javascript">
function Student(id, name, gender, birthday, score) {
this.id = id;
this.name = name;
this.gender = gender;
this.birthday = birthday;
this.score = score;
this.study = function () {
this.score = this.score === 100 ? this.score : this.score += 1;
};
this.getAge = function () {
return new Date().getFullYear() - new Date(birthday).getFullYear()
};
}
var student = new Student(1,'张三','男','1996-2-12',20);
console.log('学习成绩:'+student.score);
console.log('年龄:'+student.getAge());
student.study();
console.log('学习成绩:'+student.score); //学分加1
student.study();
console.log('学习成绩:'+student.score); //学分加1
</script>
<body>
请打开浏览器控制台查看日志输出效果。
</body>
</html>本回答被提问者采纳
第2个回答 2019-04-07
let student = new Object;
student.no = 1;
student.name = "大企鹅";
student.sex = "男";
student.born = "1995-09-25";
student.score = 0;
student.learn = function () {
student.score += 10
};
student.age = function () {
let returnAge;
// 根据生日计算年龄（"1995-09-25"）
//以下五行是为了获取出生年月日，如果是从身份证上获取需要稍微改变一下
let strBirthdayArr = student.born.split("-");
let birthYear = strBirthdayArr[0];
let birthMonth = strBirthdayArr[1];
let birthDay = strBirthdayArr[2];
d = new Date();
let nowYear = d.getFullYear();
let nowMonth = d.getMonth() + 1;
let nowDay = d.getDate();
if (nowYear == birthYear) {
returnAge = 0;//同年 则为0岁
} else {
let ageDiff = nowYear - birthYear; //年之差
if (ageDiff > 0) {
if (nowMonth == birthMonth) {
let dayDiff = nowDay - birthDay;//日之差
if (dayDiff < 0) {
returnAge = ageDiff - 1;
} else {
returnAge = ageDiff;
}
} else {
let monthDiff = nowMonth - birthMonth;//月之差
if (monthDiff < 0) {
returnAge = ageDiff - 1;
} else {
returnAge = ageDiff;
}
}
} else {
returnAge = -1;//返回-1 表示出生日期输入错误 晚于今天
}
}
return returnAge;//返回周岁年龄
};
document.body.innerHTML += student.score + "<br>";
document.body.innerHTML += student.age();本回答被网友采纳
student.no = 1;
student.name = "大企鹅";
student.sex = "男";
student.born = "1995-09-25";
student.score = 0;
student.learn = function () {
student.score += 10
};
student.age = function () {
let returnAge;
// 根据生日计算年龄（"1995-09-25"）
//以下五行是为了获取出生年月日，如果是从身份证上获取需要稍微改变一下
let strBirthdayArr = student.born.split("-");
let birthYear = strBirthdayArr[0];
let birthMonth = strBirthdayArr[1];
let birthDay = strBirthdayArr[2];
d = new Date();
let nowYear = d.getFullYear();
let nowMonth = d.getMonth() + 1;
let nowDay = d.getDate();
if (nowYear == birthYear) {
returnAge = 0;//同年 则为0岁
} else {
let ageDiff = nowYear - birthYear; //年之差
if (ageDiff > 0) {
if (nowMonth == birthMonth) {
let dayDiff = nowDay - birthDay;//日之差
if (dayDiff < 0) {
returnAge = ageDiff - 1;
} else {
returnAge = ageDiff;
}
} else {
let monthDiff = nowMonth - birthMonth;//月之差
if (monthDiff < 0) {
returnAge = ageDiff - 1;
} else {
returnAge = ageDiff;
}
}
} else {
returnAge = -1;//返回-1 表示出生日期输入错误 晚于今天
}
}
return returnAge;//返回周岁年龄
};
document.body.innerHTML += student.score + "<br>";
document.body.innerHTML += student.age();本回答被网友采纳
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