将svg中多个path合并成单个path

保留原本的属性，按照颠倒的顺序将第一个元素的d属性添加到第二个元素的d属性之前，用空格分隔

若第一个path为

  <path d="M972.810838 298.631144c-122.73839-122.73839-285.936809-190.342764-459.524787-190.342765-173.580752 0-336.779172 67.59715-459.524787 190.342765a43.342807 43.342807 0 0 0 30.655698 73.998504 43.248882 43.248882 0 0 0 30.655697-12.694334c106.366528-106.366528 247.781556-164.946871 398.206167-164.946871s291.854089 58.580343 398.220617 164.946871a43.350032 43.350032 0 0 0 61.311395-61.30417z" fill="" p-id="2608"></path>

第二个为

  <path d="M513.286051 345.803203c-121.365639 0-235.462922 47.265985-321.281535 133.077373a43.342807 43.342807 0 0 0 0.007225 61.30417c8.460481 8.467706 19.558089 12.701559 30.648472 12.701559s22.187991-4.233853 30.655698-12.701559c69.432301-69.439526 161.760643-107.681479 259.962915-107.681479 98.209497 0 190.53784 38.241953 259.977365 107.681479a43.328357 43.328357 0 0 0 61.296945 0 43.335582 43.335582 0 0 0 0-61.30417c-85.796938-85.818613-199.901446-133.077372-321.267085-133.077373zM327.59619 659.614083a43.350032 43.350032 0 0 0 61.296945 61.30417c68.5942-68.586975 180.184407-68.586975 248.785832 0a43.219982 43.219982 0 0 0 30.648472 12.694334 43.335582 43.335582 0 0 0 30.648473-73.998504c-102.392775-102.392775-268.986947-102.392775-371.379722 0zM513.286051 823.036478a43.342807 43.342807 0 0 0-35.445876 73.752854c9.768207 9.760982 22.614267 14.645086 35.445876 14.645086s25.677669-4.884104 35.445876-14.645086a43.342807 43.342807 0 0 0-35.445876-73.752854z" fill="" p-id="2609"></path>

合并后

  <path  d="M972.810838 298.631144c-122.73839-122.73839-285.936809-190.342764-459.524787-190.342765-173.580752 0-336.779172 67.59715-459.524787 190.342765a43.342807 43.342807 0 0 0 30.655698 73.998504 43.248882 43.248882 0 0 0 30.655697-12.694334c106.366528-106.366528 247.781556-164.946871 398.206167-164.946871s291.854089 58.580343 398.220617 164.946871a43.350032 43.350032 0 0 0 61.311395-61.30417z M513.286051 345.803203c-121.365639 0-235.462922 47.265985-321.281535 133.077373a43.342807 43.342807 0 0 0 0.007225 61.30417c8.460481 8.467706 19.558089 12.701559 30.648472 12.701559s22.187991-4.233853 30.655698-12.701559c69.432301-69.439526 161.760643-107.681479 259.962915-107.681479 98.209497 0 190.53784 38.241953 259.977365 107.681479a43.328357 43.328357 0 0 0 61.296945 0 43.335582 43.335582 0 0 0 0-61.30417c-85.796938-85.818613-199.901446-133.077372-321.267085-133.077373zM327.59619 659.614083a43.350032 43.350032 0 0 0 61.296945 61.30417c68.5942-68.586975 180.184407-68.586975 248.785832 0a43.219982 43.219982 0 0 0 30.648472 12.694334 43.335582 43.335582 0 0 0 30.648473-73.998504c-102.392775-102.392775-268.986947-102.392775-371.379722 0zM513.286051 823.036478a43.342807 43.342807 0 0 0-35.445876 73.752854c9.768207 9.760982 22.614267 14.645086 35.445876 14.645086s25.677669-4.884104 35.445876-14.645086a43.342807 43.342807 0 0 0-35.445876-73.752854z" fill="" p-id="2609"></path>