{"id":39858,"date":"2024-11-26T15:01:05","date_gmt":"2024-11-26T07:01:05","guid":{"rendered":"https:\/\/fwq.ai\/blog\/39858\/"},"modified":"2024-11-26T15:01:05","modified_gmt":"2024-11-26T07:01:05","slug":"%e4%bf%ae%e6%94%b9%e4%b8%9c%e8%a5%bf%e5%9c%a8java%e6%95%b0%e7%bb%84%e4%b8%ad%e6%80%8e%e4%b9%88%e5%bc%84","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/39858\/","title":{"rendered":"\u4fee\u6539\u4e1c\u897f\u5728java\u6570\u7ec4\u4e2d\u600e\u4e48\u5f04"},"content":{"rendered":"

\n java\u6570\u7ec4\u4e2d\u53ef\u4ee5\u4fee\u6539\u5143\u7d20\u503c\uff0c\u6b65\u9aa4\u5982\u4e0b\uff1a\u786e\u5b9a\u8981\u4fee\u6539\u7684\u5143\u7d20\u7d22\u5f15\u3002\u4f7f\u7528\u6570\u7ec4\u8bed\u6cd5\u8bbf\u95ee\u8be5\u5143\u7d20\u3002\u5c06\u5143\u7d20\u503c\u5206\u914d\u7ed9\u4e00\u4e2a\u65b0\u503c\u3002\n<\/p><\/blockquote>\n

\"\u4fee\u6539\u4e1c\u897f\u5728java\u6570\u7ec4\u4e2d\u600e\u4e48\u5f04\u63d2\u56fe\"<\/p>\n

Java\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u4fee\u6539<\/strong><\/p>\n

Java\u6570\u7ec4\u662f\u4e00\u4e2a\u6570\u636e\u7ed3\u6784\uff0c\u5b83\u53ef\u4ee5\u5b58\u50a8\u5177\u6709\u76f8\u540c\u6570\u636e\u7c7b\u578b\u7684\u56fa\u5b9a\u6570\u91cf\u7684\u5143\u7d20\u3002\u4fee\u6539\u6570\u7ec4\u4e2d\u5143\u7d20\u503c\u7684\u8fc7\u7a0b\u76f8\u5bf9\u7b80\u5355\u3002\u4ee5\u4e0b\u662f\u5b9e\u73b0\u5b83\u7684\u6b65\u9aa4\uff1a<\/p>\n

1. \u786e\u5b9a\u6570\u7ec4\u7d22\u5f15<\/strong><\/p>\n

\u8981\u4fee\u6539\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\uff0c\u60a8\u9700\u8981\u9996\u5148\u786e\u5b9a\u8981\u4fee\u6539\u7684\u5143\u7d20\u7684\u7d22\u5f15\u3002\u7d22\u5f15\u662f\u4e00\u4e2a\u4ece0\u5f00\u59cb\u7684\u6574\u6570\u503c\uff0c\u5b83\u8868\u793a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u4f4d\u7f6e\u3002<\/p>\n

\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n

2. \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20<\/strong><\/p>\n

\u4e00\u65e6\u60a8\u786e\u5b9a\u4e86\u7d22\u5f15\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528\u6570\u7ec4\u8bed\u6cd5\u6765\u8bbf\u95ee\u8be5\u5143\u7d20\u3002\u6570\u7ec4\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n

arrayName[index]<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5176\u4e2d\uff1a<\/p>\n
    \n
  • arrayName \u662f\u6570\u7ec4\u7684\u540d\u79f0<\/li>\n
  • index \u662f\u8981\u8bbf\u95ee\u7684\u5143\u7d20\u7684\u7d22\u5f15<\/li>\n<\/ul>\n
    3. \u4fee\u6539\u5143\u7d20\u503c<\/strong><\/p>\n
    \u73b0\u5728\u60a8\u5df2\u7ecf\u8bbf\u95ee\u4e86\u8981\u4fee\u6539\u7684\u5143\u7d20\uff0c\u53ef\u4ee5\u5c06\u5176\u503c\u5206\u914d\u7ed9\u4e00\u4e2a\u65b0\u7684\u503c\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n
    arrayName[index] = newValue;<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u5176\u4e2d\uff1a<\/p>\n
      \n
    • newValue \u662f\u65b0\u503c<\/li>\n<\/ul>\n
      \u793a\u4f8b<\/strong><\/p>\n
      \u4ee5\u4e0b\u662f\u4e00\u4e2a\u4fee\u6539\u6570\u7ec4\u4e2d\u5143\u7d20\u503c\u7684\u793a\u4f8b\uff1a<\/p>\n
      int[] numbers = {1, 2, 3, 4, 5};\nnumbers[2] = 10;<\/pre>\n
       \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
      \u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u5c06\u6570\u7ec4 numbers \u4e2d\u7d22\u5f15\u4e3a2\u7684\u5143\u7d20\uff08\u6700\u521d\u4e3a3\uff09\u4fee\u6539\u4e3a10\u3002<\/p>\n
      \u6ce8\u610f\u4e8b\u9879<\/strong><\/p>\n
      \u4fee\u6539\u6570\u7ec4\u5143\u7d20\u65f6\uff0c\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u51e0\u70b9\uff1a<\/p>\n
        \n
      • \u7d22\u5f15\u5fc5\u987b\u5728\u6570\u7ec4\u957f\u5ea6\u7684\u8303\u56f4\u5185\u3002<\/li>\n
      • \u5206\u914d\u7ed9\u5143\u7d20\u7684\u65b0\u503c\u5fc5\u987b\u4e0e\u5143\u7d20\u7684\u6570\u636e\u7c7b\u578b\u517c\u5bb9\u3002<\/li>\n
      • \u4e00\u65e6\u5206\u914d\u4e86\u4e00\u4e2a\u65b0\u503c\uff0c\u539f\u503c\u5c06\u88ab\u8986\u76d6\u3002<\/li>\n<\/ul>\n
        \u4ee5\u4e0a\u5c31\u662f\u4fee\u6539\u4e1c\u897f\u5728java\u6570\u7ec4\u4e2d\u600e\u4e48\u5f04\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
        java\u6570\u7ec4\u4e2d\u53ef\u4ee5\u4fee\u6539\u5143\u7d20\u503c\uff0c\u6b65\u9aa4\u5982\u4e0b\uff1a\u786e\u5b9a\u8981\u4fee\u6539\u7684\u5143\u7d20\u7d22\u5f15\u3002\u4f7f\u7528\u6570\u7ec4\u8bed\u6cd5\u8bbf\u95ee\u8be5\u5143\u7d20\u3002\u5c06\u5143\u7d20\u503c\u5206\u914d\u7ed9\u4e00\u4e2a\u65b0\u503c\u3002 Java\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u4fee\u6539 Java\u6570\u7ec4\u662f\u4e00\u4e2a\u6570\u636e\u7ed3\u6784\uff0c\u5b83\u53ef\u4ee5\u5b58\u50a8\u5177\u6709\u76f8\u540c\u6570\u636e\u7c7b\u578b\u7684\u56fa\u5b9a\u6570\u91cf\u7684\u5143\u7d20\u3002\u4fee\u6539\u6570\u7ec4\u4e2d\u5143\u7d20\u503c\u7684\u8fc7\u7a0b\u76f8\u5bf9\u7b80\u5355\u3002\u4ee5\u4e0b\u662f\u5b9e\u73b0\u5b83\u7684\u6b65\u9aa4\uff1a 1. \u786e\u5b9a\u6570\u7ec4\u7d22\u5f15 \u8981\u4fee\u6539\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\uff0c\u60a8\u9700\u8981\u9996\u5148\u786e\u5b9a\u8981\u4fee\u6539\u7684\u5143\u7d20\u7684\u7d22\u5f15\u3002\u7d22\u5f15\u662f\u4e00\u4e2a\u4ece0\u5f00\u59cb\u7684\u6574\u6570\u503c\uff0c\u5b83\u8868\u793a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u4f4d\u7f6e\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b 2. \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20 \u4e00\u65e6\u60a8\u786e\u5b9a\u4e86\u7d22\u5f15\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528\u6570\u7ec4\u8bed\u6cd5\u6765\u8bbf\u95ee\u8be5\u5143\u7d20\u3002\u6570\u7ec4\u8bed\u6cd5\u5982\u4e0b\uff1a arrayName[index] \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff1a arrayName \u662f\u6570\u7ec4\u7684\u540d\u79f0 index \u662f\u8981\u8bbf\u95ee\u7684\u5143\u7d20\u7684\u7d22\u5f15 3. \u4fee\u6539\u5143\u7d20\u503c \u73b0\u5728\u60a8\u5df2\u7ecf\u8bbf\u95ee\u4e86\u8981\u4fee\u6539\u7684\u5143\u7d20\uff0c\u53ef\u4ee5\u5c06\u5176\u503c\u5206\u914d\u7ed9\u4e00\u4e2a\u65b0\u7684\u503c\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a arrayName[index] = newValue; \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff1a newValue \u662f\u65b0\u503c \u793a\u4f8b \u4ee5\u4e0b\u662f\u4e00\u4e2a\u4fee\u6539\u6570\u7ec4\u4e2d\u5143\u7d20\u503c\u7684\u793a\u4f8b\uff1a int[] numbers = {1, 2, 3, 4, 5}; numbers[2] = 10; \u767b\u5f55\u540e\u590d\u5236 \u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u5c06\u6570\u7ec4 numbers \u4e2d\u7d22\u5f15\u4e3a2\u7684\u5143\u7d20\uff08\u6700\u521d\u4e3a3\uff09\u4fee\u6539\u4e3a10\u3002 \u6ce8\u610f\u4e8b\u9879 \u4fee\u6539\u6570\u7ec4\u5143\u7d20\u65f6\uff0c\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u51e0\u70b9\uff1a \u7d22\u5f15\u5fc5\u987b\u5728\u6570\u7ec4\u957f\u5ea6\u7684\u8303\u56f4\u5185\u3002 \u5206\u914d\u7ed9\u5143\u7d20\u7684\u65b0\u503c\u5fc5\u987b\u4e0e\u5143\u7d20\u7684\u6570\u636e\u7c7b\u578b\u517c\u5bb9\u3002 \u4e00\u65e6\u5206\u914d\u4e86\u4e00\u4e2a\u65b0\u503c\uff0c\u539f\u503c\u5c06\u88ab\u8986\u76d6\u3002 \u4ee5\u4e0a\u5c31\u662f\u4fee\u6539\u4e1c\u897f\u5728java\u6570\u7ec4\u4e2d\u600e\u4e48\u5f04\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-39858","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/39858","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=39858"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/39858\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=39858"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=39858"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=39858"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}