{"id":1362,"date":"2010-12-23T22:07:24","date_gmt":"2010-12-23T14:07:24","guid":{"rendered":"http:\/\/www.zhangxinxu.com\/wordpress\/?p=1362"},"modified":"2018-01-01T21:48:02","modified_gmt":"2018-01-01T13:48:02","slug":"div-textarea-height-auto","status":"publish","type":"post","link":"https:\/\/www.zhangxinxu.com\/wordpress\/2010\/12\/div-textarea-height-auto\/","title":{"rendered":"div\u6a21\u62dftextarea\u6587\u672c\u57df\u8f7b\u677e\u5b9e\u73b0\u9ad8\u5ea6\u81ea\u9002\u5e94"},"content":{"rendered":"

by zhangxinxu<\/a> from http:\/\/www.zhangxinxu.com<\/a>
\n\u672c\u6587\u5730\u5740\uff1a http:\/\/www.zhangxinxu.com\/wordpress\/?p=1362<\/a><\/p>\n

\u4e00\u3001\u5173\u4e8etextarea\u6587\u672c\u57df\u4ee5\u53ca\u9ad8\u5ea6\u81ea\u9002\u5e94<\/h3>\n

<textarea><\/code>\u6807\u7b7e\u4e3a\u8868\u5355\u5143\u7d20\uff0c\u4e00\u822c\u7528\u5728\u591a\u884c\u6587\u5b57\u7684\u8f93\u5165\u3002\u5728web\u5e94\u7528\u4e0a\u5e38\u89c1\u7684\u662f\u8bc4\u8bba\u8f93\u5165\u6846\uff0c\u5fae\u535a\u4fe1\u606f\u8f93\u5165\u6846\u7b49\u3002\u4f8b\u5982\u4f01\u9e45\u5fae\u535a\u7684\u8f93\u5165\u6846\uff1a
\n\"\u4f01\u9e45\u5fae\u535a\u7684\u6587\u672c\u57df\u8f93\u5165\u6846<\/p>\n

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\n\"Buzz\u8f93\u5165\u6846\u9ad8\u5ea6\u81ea\u9002\u5e94\u9ed8\u8ba4
\n\"Buzz\u8f93\u5165\u591a\u884c\u6587\u5b57\u540e\u9ad8\u5ea6\u81ea\u52a8\u6491\u9ad8<\/p>\n

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\n\"\u63d0\u95ee\u4e0e\u4ea4\u6d41\u9875\u9762\u7684\u56de\u7b54\u6846<\/p>\n

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\n\"\u8f93\u5165\u4e9b\u6587\u5b57\u540e\u9ad8\u5ea6\u81ea\u52a8\u53d8\u9ad8<\/p>\n

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\u4e8c\u3001div\u6a21\u62dftextarea\u6587\u672c\u57df\u53ca\u9ad8\u5ea6\u81ea\u9002\u5e94<\/h3>\n

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\n\"web<\/p>\n

\/\/zxx:\u4f01\u9e45\u7684\u5723\u8bde\u4e3b\u9898\u754c\u9762\u5f88nice\uff0c\u89c6\u89c9\u6548\u679c\u5f88\u8d5e\uff0c\u4e0b\u96ea\u7684\u6548\u679c\u4e5f\u5f88\u6709\u7231\uff0c\u8fdecup\u4e5f\u4e3a\u4e4b\u5954\u817e\u3002<\/span><\/p>\n

\u4f7f\u7528\u5f88\u7b80\u5355\uff0c\u4e00\u4e2a\u666e\u901a\u7684block\u5143\u7d20\u4e0a\u52a0\u4e2acontenteditable=\"true\"<\/code>\u5c31ok\u4e86\uff0c\u5982\u4e0b\uff1a<\/p>\n

\n
<div contenteditable=\"true\"><\/div> <\/pre>\n<\/div>\n
true<\/code>\u5916\u9762\u7684\u5f15\u53f7\u751a\u81f3\u53bb\u6389\u90fd\u6ca1\u5173\u7cfb\u3002<\/p>\n
contenteditable<\/code>\u5c5e\u6027\u867d\u662fHTML5\u91cc\u9762\u7684\u5185\u5bb9\uff0c\u4f46\u662fIE\u4f3c\u4e4e\u8001\u65e9\u5c31\u652f\u6301\u6b64\u6807\u7b7e\u5c5e\u6027\u4e86\u3002\u6240\u4ee5\uff0c\u517c\u5bb9\u6027\u65b9\u9762\u8fd8\u662f\u4e0d\u7528\u592a\u62c5\u5fc3\u7684\u3002<\/p>\n
ok\uff0c\u6700\u9ebb\u70e6\u7684\u6a21\u62dftextarea\u7684\u53ef\u7f16\u8f91\u6548\u679c\u5df2\u7ecf\u89e3\u51b3\u4e86\uff0c\u73b0\u5728\u60f3\u8981\u4f7f\u7528<div><\/code>\u5b9e\u73b0\u9ad8\u5ea6\u81ea\u9002\u5e94\u90a3\u5c31\u50cf\u662f\u7ed9\u82b1\u82b1\u8349\u8349\u677e\u677e\u571f\u4e00\u6837\u5bb9\u6613\u7684\u3002\u4f7f\u7528min-height<\/code>\u5c5e\u6027\u57fa\u672c\u4e0a\u5c31\u4e00\u6b65\u5230\u4f4d\u4e86\uff0c\u8003\u8651\u5230IE6\u6d4f\u89c8\u5668\u5bf9min<\/code>\/max<\/code>\u5bb6\u65cf\u4e0d\u5c51\u4e00\u987e\uff0c\u7ed3\u5408\u5176\u5185\u90e8\u5143\u7d20\u6ea2\u51fa\u4f1a\u6491\u5f00\u7236\u6807\u7b7e\u9ad8\u5bbd\u7684\u7279\u6027\uff0cIE6\u6d4f\u89c8\u5668\u76f4\u63a5\u5b9a\u9ad8\u5c31\u53ef\u4ee5\u4e86\u3002\u4e8e\u662f\uff0c\u5047\u8bbe\u6211\u4eec\u8981\u5b9e\u73b0\u9ed8\u8ba4200\u50cf\u7d20\u9ad8\u5ea6\uff0c\u9ad8\u5ea6\u53ef\u968f\u5185\u5bb9\u81ea\u9002\u5e94\u7684\u6548\u679c\uff0c\u76f4\u63a5\u4e0b\u9762\u4e24\u4e2a\u6837\u5f0f\u5c31\u53ef\u4ee5\u4e86\uff1a<\/p>\n
\n
{ min-height: 200px; _height: 200px; }<\/pre>\n<\/div>\n
\u4e8e\u662f\uff0c\u628a\u8bf4\u5230\u73b0\u5728\u7684\u5185\u5bb9\u7ed3\u5408\u4e00\u8d77\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528div\u6a21\u62dftextarea\u6587\u672c\u57df\u8f7b\u677e\u5b9e\u73b0\u9ad8\u5ea6\u81ea\u9002\u5e94\u4e86\u3002<\/p>\n
\u5982\u4e0b\u6d4b\u8bd5\u4ee3\u7801\u2014\u2014
\nCSS\u4ee3\u7801\uff1a<\/p>\n
\n
\n.test_box {\n    width: 400px; \n    min-height: 120px; \n    max-height: 300px;\n    _height: 120px; \n    margin-left: auto; \n    margin-right: auto; \n    padding: 3px; \n    outline: 0; \n    border: 1px solid #a0b3d6; \n    font-size: 12px; \n    word-wrap: break-word;\n    overflow-x: hidden;\n    overflow-y: auto;\n    _overflow-y: visible;\n}\n<\/pre>\n<\/div>\n
HTML\u4ee3\u7801\uff1a<\/p>\n
\n
<div class=\"test_box\" contenteditable=\"true\"><br \/><\/div> <\/pre>\n<\/div>\n
\u7ed3\u679c\u5982\u4e0b\u56fe\uff08\u5168\u90e8\u622a\u81eaIE6\u6d4f\u89c8\u5668\uff09\uff1a
\n\"IE6\u4e0bdiv\u6a21\u62df\u7684textarea\u9ed8\u8ba4<\/p>\n
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\n\"IE6\u4e0b\u6a21\u62dftextarea\u9ad8\u5ea6\u81ea\u9002\u5e94<\/p>\n
\u53ef\u4ee5\u770b\u5230\u53ef\u7f16\u8f91\u6807\u7b7e\u9ad8\u5ea6\u81ea\u5e26\u6491\u5f00\u4e86\u3002\u5b8c\u5168\u7684CSS\uff0c\u6ca1\u6709\u6742\u788e\u7684js\u4ee3\u7801\u3002\u6211\u4eec\u8bbe\u7f6e\u53ef\u4ee5\u8bbe\u5b9a\u4e00\u4e2a\u6700\u5927\u9ad8\u5ea6(max-height<\/code>)\uff0c\u8ba9\u5176\u8d85\u51fa\u7684\u65f6\u5019\u51fa\u73b0\u6eda\u52a8\u6761\uff0c\u6b63\u5982\u4e0b\u9762demo\u9875\u9762\u6240\u505a\u7684\u4e00\u6837\u3002<\/p>\n
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\n\"Firefox3.6\u4e0b\u7684demo\u6548\u679c\u622a\u56fe<\/p>\n
\u7136\u800c\uff0c\u4e8b\u60c5\u5e76\u4e0d\u4f1a\u5982\u6b64\u4e00\u5e06\u98ce\u987a\uff0c\u8fd8\u6709\u4e0d\u5c11\u6ce8\u610f\u4e8b\u9879\u503c\u5f97\u4e00\u63d0\u3002<\/p>\n
\u4e09\u3001\u4e00\u4e9b\u6ce8\u610f\u4e0e\u8bf4\u660e<\/h3>\n
1\u3001 \u73b0\u4ee3\u6d4f\u89c8\u5668\u5982Firefox\u5728\u53ef\u7f16\u8f91\u6a21\u5f0f\u4e0b\u7684div\u83b7\u53d6\u7126\u70b9\u7684\u65f6\u5019\u4f1a\u6709\u865a\u6846\uff0c\u800c\u5b9e\u9645\u4e0atextarea<\/code>\u662f\u6ca1\u6709\u865a\u6846\u663e\u793a\u7684\uff0c\u6b64\u8ff9\u8c61\u4f1a\u66b4\u9732\u51fa<div><\/code>\u662f\u4e2a\u5192\u724c\u8d27\uff0c\u6240\u4ee5\uff0c\u9700\u8981\u6dfb\u52a0\u4e0b\u9762\u7684\u6837\u5f0f\uff1a<\/p>\n
\n
outline:0;<\/pre>\n<\/div>\n
2\u3001 Firefox\u6d4f\u89c8\u5668\u4e0b\u53ef\u7f16\u8f91\u6a21\u5f0f\u7684div<\/code>\u5982\u679c\u5185\u90e8\u5143\u7d20\u662f\u7a7a\u7a7a\u7684\uff0c\u90a3\u4e48\u5176\u5728\u83b7\u53d6\u7126\u70b9\u662f\u65f6\u5019\uff0c\u5149\u6807\u4e0d\u53ef\u89c1\u6216\u662f\u4e0e\u5916\u90e8div<\/code>\u9f50\u9ad8\uff0c\u8fd9\u4e5f\u662f\u4f1a\u66b4\u9732\u51fa\u81ea\u5df1\u662ftextarea<\/code>\u5192\u724c\u8d27\u7684\uff0c\u6240\u4ee5\uff0c\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u6b64div<\/code>\u4e2d\u589e\u52a0\u4e00\u4e2a\u5b64\u5355\u7684<br><\/code>\u6362\u884c\u6807\u7b7e\u3002\u4f46\u662f\uff0cIE8\u4e0b\uff0c\u5982\u679c\u6709\u4e2a\u9ed8\u8ba4\u7684<br><\/code>\u6807\u7b7e\uff0c\u5149\u6807\u4f4d\u7f6e\u53ef\u80fd\u4f1a\u5728\u7b2c\u4e8c\u884c\u95ea\u6765\u95ea\u53bb\uff0c\u6240\u4ee5\uff0cIE8\u4e0b\u53ef\u7f16\u8f91div<\/code>\u91cc\u9762\u9ed8\u8ba4\u662f\u4e0d\u80fd\u6709<br><\/code>\u6807\u7b7e\u7684\uff0c\u8fd9\u4e2a\u561b\uff0c\u60a8\u81ea\u5df1\u60f3\u529e\u6cd5\u6e05\u6389\u5427\u3002<\/p>\n
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