CN Number.js

(function (Scratch) {
  'use strict';

  let Number2, null2, units, Number_in, uppercase, i, N_Z, o, j, After_decimal_point, unit, k, C_Number, m, n;

  class CNNUMBER {
    getInfo() {
      return {
        id: 'nonameawacnnumber',
        name: '中文数字',
        color1: '#cb0000',
        color2: '#a20000',
        color3: '#a20000',
        blocks: [
          {
            opcode: 'CN_number',
            blockType: Scratch.BlockType.REPORTER,
            disableMonitor: true,
            text: '中文数字 [a] 大写 [u]',
            arguments: {
              a: {
                type: Scratch.ArgumentType.NUMBER,
                defaultValue: '2020'
              },
              u: {
                type: Scratch.ArgumentType.STRING,
                menu: 'uppercase'
              },
            }
          },
        ],
        menus: {
          uppercase: {
            acceptReporters: true,
            items: [
              {
                text: '关闭',
                value: '0'
              },
              {
                text: '打开',
                value: '1'
              }
            ]
          }
        }
      };
    }
    CN_number(args) {
      if (isNaN(args.a)) {
        return "";
      }
      return CN_NUMBER(args.a, args.u);
    }
  }


  const main = (Number2, null2, units) => {
    if (Number2 == 0) {
      return null2 ? '零' : '';
    }
    i = '';
    let j_start = String(Number2).length;
    let j_inc = 1;
    if (j_start > 1) {
      j_inc = -j_inc;
    }
    for (j = j_start; j_inc >= 0 ? j <= 1 : j >= 1; j += j_inc) {
      if (units) {
        k = String(Number2).charAt(((String(Number2).length - (j - 1)) - 1));
        if (Number2 >= 10000) {
          return '';
        }
        i = String(i) + String(String(Number2).slice((-j)).charAt(0) == '2' && j >= 3 ? '两' : (k == '0' ? (j == 1 ? '' : (i.slice(-1) == '零' ? '' : (String(Number2).slice(-1) == '0' && (j != 3 || String(Number2).charAt(2) == '0') ? ' ' : '零'))) : C_Number[(k - 1)]));
        i = String(i) + String(i.slice(-1) == '零' || i.slice(-1) == ' ' ? '' : (unit[(j - 1)] == '个' ? '' : unit[(j - 1)]));
      } else {
        if (j != 1) {
          k = String(Number2).slice((-(j - 1))).charAt(0);
          i = String(i) + String(k == 0 ? '零' : C_Number[([k].reduce(function (x, y) {
            return x + y;
          }) - 1)]);
        }
      }
    }
    if (Number2 >= 10 && Number2 < 20) {
      return i.trim().slice(1, 3);
    }
    return i.trim();
  };

  const CN_NUMBER = (Number_in, uppercase) => {
    if (String(Math.abs(Number_in >= 0 ? Math.floor(Number_in) : Math.ceil(Number_in))).length > 20) {
      return '';
    }
    N_Z = Math.abs(Number_in >= 0 ? Math.floor(Number_in) : Math.ceil(Number_in));
    After_decimal_point = '.' + String(String(Number_in).split('.')[1]);
    unit = (uppercase ? '个、拾、佰、仟、万、亿、兆、京' : '个、十、百、千、万、亿、兆、京').split('、');
    C_Number = (uppercase ? '壹、贰、叁、肆、伍、陆、柒、捌、玖、拾' : '一、二、三、四、五、六、七、八、九、十').split('、');
    m = '';
    o = '';
    let n_end = String(N_Z).length;
    let n_inc = 1;
    if (1 > n_end) {
      n_inc = -n_inc;
    }
    for (n = 1; n_inc >= 0 ? n <= n_end : n >= n_end; n += n_inc) {
      m = [n % 4 == 0 ? ' ' : '', String(N_Z).slice((-n)).charAt(0), m].join('');
    }
    m = m.trim().split(' ');
    let n_end2 = m.length;
    let n_inc2 = 1;
    if (1 > n_end2) {
      n_inc2 = -n_inc2;
    }
    for (n = 1; n_inc2 >= 0 ? n <= n_end2 : n >= n_end2; n += n_inc2) {
      o = [m.length == n ? '' : unit[((n + 4) - 1)], main(m.slice((-n))[0], m.length == n, true), o].join('');
    }
    return [Number_in < 0 ? '负' : '', o, Number_in % 1 != 0 ? '点' + String(main(After_decimal_point, false, false)) : ''].join('');
  };

  Scratch.extensions.register(new CNNUMBER());
})(Scratch);