var date = new Date();
//当前是哪一年
var year = date.getFullYear();
//当前是哪个月，注意这里的月是从0开始计数的
var month = date.getMonth();

//当前月的第一天的日期
var firstDay = new Date(year,month,1);
//第一天是星期几
var weekday = firstDay.getDay();

//求当前月一共有多少天
//new Date(year,month+1,0) ： month+1是下一个月，day为0代表的是上一个月的最后一天，即我们所需的当前月的最后一天。
//getDate（）则返回这个日期对象是一个月中的第几天，我们由最后一天得知这个月一共有多少天
var days = new Date(year,month+1,0).getDate();

var res = "";
//输出第一天之前的空格
for(var i=0;i<weekday;i++){
    res+="  ";
}

for(var j=1;j<=days ;j++){
    res += j+" ";
    weekday++;

    //如果是周日则换行
    if(weekday%7 == 0){
           weekday = 0;
           res += '\n';
    }
}

python任意输入一个月份，输出上月本月下月的日历，要求连续

代码

#-*-codeing = utf-8 -*-
#@Time : 2020/11/17 23:55
#@Author : 宋俊育
#@File : 任意输入一个月份，输出上月本月下月的日历，要求连续.py
#@Software : PyCharm
from datetime import datetime

def drawCalendar(year, month):
    dateday = []
    if month == 1:
        someday = datetime((year - 1), 12, 1)
        firstDay = someday.isoweekday()
        firstD = firstDay;
        for i in range(firstDay):
            dateday.append(" ")
        for i in range(1, 32):
            dateday.append(i)
        for i in range(1, 32):
            dateday.append(i)
        if (year % 4 == 0 and year % 100 != 0) or year % 400 == 0:
            for i in range(1, 30):
                dateday.append(i)
        else:
            for i in range(1, 29):
                dateday.append(i)
    elif month == 12:
        someday = datetime(year, 11, 1)
        firstDay = someday.isoweekday()
        firstD = firstDay;
        for i in range(1, 31):
            dateday.append(i)
        for i in range(1, 32):
            dateday.append(i)
        for i in range(1, 32):
            dateday.append(i)
    else:
        someday = datetime(year, (month - 1), 1)
        firstDay = someday.isoweekday()
        firstD = firstDay;
        for i in range(firstDay):
            dateday.append(" ")
        for j in range((month - 1), (month + 2)):
            if ((year % 4 == 0 and year % 100 != 0) or year % 400 == 0) and j == 2:
                for i in range(1, 30):
                    dateday.append(i)
            elif j in [1, 3, 5, 7, 8, 10, 12]:
                for i in range(1, 32):
                    dateday.append(i)
            elif j == 2:
                for i in range(1, 29):
                    dateday.append(i)
            elif j in [4, 6, 9, 11]:
                for i in range(1, 31):
                    dateday.append(i)
    print(" Mo    Tu    We    Th    Fr    Sa    Su", end="")
    for i in range(0, len(dateday)):
        print("{0: >3}   ".format(dateday[i]), end="")
        if i % 7 == 0:
            print("")

year = eval(input("请输入年份："))
month = eval(input("请输入月份:"))
drawCalendar(year, month)

运行：

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  辰小白小白最近在写日历模板，项目已经用了element组件，奈何element日历组件官方文档提供的资料实在太少了。所以这里希望有相关开发需要的朋友能够少走一些辰小白踩过的坑。

首先展示一些模板效果图：

 这个项目的详细介绍可以下辰小白的这篇文章：后端开发的福音，vue+element实现的vue-element-admin前台框架，开箱即用

下面是日历模板首页源码

<template>
  <div>
    <el-card class="_calendar">
      <el-container>
        <el-main>
          <el-card>
            <el-calendar v-model="value" :first-day-of-week="7">
              <!-- 这里使用的是 2.5 slot 语法，对于新项目请使用 2.6 slot 语法-->
              <template slot="dateCell" slot-scope="{date, data}">
                <div slot="reference" class="div-Calendar" @click="calendarOnClick(data)">
                  <p :class="data.isSelected ? 'is-selected' : ''">
                    {{ data.day.split('-').slice(1).join('-') }}
                    <i
                      :class="[data.isSelected ?'el-icon-check':'']"
                    ></i>
                    <i v-if="_.indexOf(isArrange, data.day)>0" class="el-icon-s-claim"></i>
                    <!-- <i class="el-icon-coffee-cup"></i> -->
                  </p>
                </div>
              </template>
            </el-calendar>
          </el-card>
        </el-main>

        <el-aside width="40%" style="overflow: hidden;">
          <el-card>
            <div class="el-calendar__header">
              <div class="el-calendar__title">排班详情</div>
              <div class="el-calendar__button-group">
                <div class="el-button-group">
                  <button
                    type="button"
                    class="el-button el-button--plain el-button--mini"
                    @click="saveOnClick"
                  >
                    <span>新增</span>
                  </button>
                </div>
              </div>
            </div>
            <div class="calendar-info">
              <div style="padding: 15px;">
                <div role="alert" class="el-alert el-alert--success is-dark" @click="infoOnClick">
                  <i class="el-alert__icon el-icon-success is-big"></i>
                  <div class="el-alert__content">
                    <span class="el-alert__title is-bold">2020-06-19 9:00~11:00</span>
                    <p class="el-alert__description">值班人员：张三、李四、王五</p>
                    <p class="el-alert__description">携带设备：123547、985431、745481</p>
                    <i class="el-alert__closebtn el-icon-close" @click.stop="infoDel"></i>
                  </div>
                </div>
                <div role="alert" class="el-alert el-alert--info is-dark" @click="infoOnClick">
                  <i class="el-alert__icon el-icon-info is-big"></i>
                  <div class="el-alert__content">
                    <span class="el-alert__title is-bold">2020-06-19 9:00~11:00（待审核）</span>
                    <p class="el-alert__description">值班人员：张三、李四、王五</p>
                    <p class="el-alert__description">携带设备：123547、985431、745481</p>
                    <i class="el-alert__closebtn el-icon-close"></i>
                  </div>
                </div>
                <div role="alert" class="el-alert el-alert--warning is-dark" @click="infoOnClick">
                  <i class="el-alert__icon el-icon-warning is-big"></i>
                  <div class="el-alert__content">
                    <span class="el-alert__title is-bold">警告提示的文案</span>
                    <p class="el-alert__description">文字说明文字说明文字说明文字说明文字说明文字说明</p>
                    <i class="el-alert__closebtn el-icon-close"></i>
                  </div>
                </div>
                <div role="alert" class="el-alert el-alert--error is-dark" @click="infoOnClick">
                  <i class="el-alert__icon el-icon-error is-big"></i>
                  <div class="el-alert__content">
                    <span class="el-alert__title is-bold">错误提示的文案</span>
                    <p class="el-alert__description">文字说明文字说明文字说明文字说明文字说明文字说明</p>
                    <i class="el-alert__closebtn el-icon-close"></i>
                  </div>
                </div>
              </div>
            </div>
          </el-card>
        </el-aside>
      </el-container>
    </el-card>
    <calendarDrawer ref="calendarDrawer"></calendarDrawer>
    <calendarForm ref="calendarForm"></calendarForm>
  </div>
</template>
<script>
import calendarDrawer from "./calendar-drawer.vue";
import calendarForm from "./calendar-form.vue";
export default {
  components: { calendarDrawer, calendarForm },
  data: function() {
    return {
      value: new Date(),
      isArrange: [
        "2020-06-08",
        "2020-06-09",
        "2020-06-10",
        "2020-06-11",
        "2020-06-17",
        "2020-06-18"
      ]
    };
  },
  created: function() {
    this.$nextTick(() => {
      // 点击前一个月
      let prevBtn = document.querySelector(
        ".el-calendar__button-group .el-button-group>button:nth-child(1)"
      );
      prevBtn.addEventListener("click", e => {
        console.log(this.data);
        this.$notify({
          title: "上一月",
          message: "上个月头天：" + this.value,
          type: "success",
          position: "top-left"
        });
      });

      //点击下一个月
      let nextBtn = document.querySelector(
        ".el-calendar__button-group .el-button-group>button:nth-child(3)"
      );
      nextBtn.addEventListener("click", () => {
        console.log(this.value);
        this.$notify({
          title: "下一月",
          message: "下个月头天：" + this.value,
          type: "warning",
          position: "top-left"
        });
      });

      //点击今天
      let todayBtn = document.querySelector(
        ".el-calendar__button-group .el-button-group>button:nth-child(2)"
      );
      todayBtn.addEventListener("click", () => {
        this.$notify.info({
          title: "今天",
          message: "今天：" + this.value,
          position: "top-left"
        });
      });
    });
  },
  mounted: function() {},
  methods: {
    //点击日期块
    calendarOnClick(e) {
      console.log(e);
      // this.isArrange.push("2020-06-19");
      this.$notify.error({
        title: "日历块点击",
        message: e,
        position: "top-left"
      });
    },
    //点击信息块
    infoOnClick() {
      this.$refs.calendarDrawer.drawer = true;
    },
    //新增排班
    saveOnClick() {
      this.$refs.calendarForm.dialogFormVisible = true;
    },
    //删除排班
    infoDel() {
      this.$confirm("此操作将永久删除该排班, 是否继续?", "提示", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning"
      })
        .then(() => {
          this.$message({
            type: "success",
            message: "删除成功!"
          });
        })
        .catch(() => {
          this.$message({
            type: "info",
            message: "已取消删除"
          });
        });
    }
  }
};
</script>
<style scoped>
.is-selected {
  color: #1989fa;
}
.p-popover {
  text-align: center;
}
._calendar {
  height: 99.5%;
  width: 100%;
}
.el-main {
  padding: 0px;
  overflow: hidden;
}
.calendar-info {
  height: 94%;
  overflow: auto;
}
.el-alert {
  margin: 15px 0px;
}
.el-alert:hover {
  transform: scale(1.02);
}
.el-alert:active {
  transform: scale(1.01);
}
</style>
<style >
._calendar .div-Calendar {
  height: 125px;
  box-sizing: border-box;
  padding: 8px;
}
._calendar .el-calendar-table .el-calendar-day {
  padding: 0px;
  height: 125px;
}
._calendar .el-container,
._calendar .el-calendar {
  height: 100%;
}
._calendar .el-card__body {
  padding: 0px;
}
</style>

 具体的几个点击事件都有备注，这里不细说了