Node.js是一个Javascript运行环境(runtime)。实际上它是对Google V8引擎进行了封装。V8引擎执行Javascript的速度非常快,性能非常好。Node.js对一些特殊用例进行了优化,提供了替代的API,使得V8在非浏览器环境下运行得更好。今天我们开始nodeJS的第一个程序的学习。

node.js的使用

一、 下载nodeJS,它的官方地址:https://nodejs.org/en/。安装过程很简单,一直next就可以。

在安装的过程中,默认是配置了系统变量。所以在命令行输入: node -v 会出现node的版本号。

aaarticlea/png;base64,iVBORw0KGgoAAAANSUhEUgAAANEAAAAxCAIAAADLHNs6AAACT0lEQVR4nO2a23WDMBAFaddduas0kArSgPORn1iP1V0kXzCeOT4+GFbSAiOBQdvX98/9fr/dbhuAB5wDNzgHbnAO3OAcuME5cDPl3GN1NpOcLR9oUjr3eP7ENAOKsmJVS1DyaW515jNf57t3rSfnip1R9q13mrP1rELJp9j00vRepN1b8+nOGVje+nWcU66k4hk90Llmc4efpLUJHL47k7id690v1iv//4zjh4rHN3N18WajzQTiIs0c4uDgZlo8bln8998J53rozmXXb9XhGMYr+Qy31ud12FAvphk/U78Y30ug/uyoZ5IFzm2yBMPxptmPh81l8xnWtqNvbKPhIdip3X0yOG5ZlD6zCqtzW0aseFN8oM/m3L4+mV0/wzHO1e2lmlf6ca/IDueGMaLTza1rnZuv3+acQbgtcG54l1Nv7ZXdfUybacTxqXx6xZU8e0N1NjexbHE91dvS8Qi3Be8hmjnpA1LvGtq7JtbrxWBlEK0/QT36z2KhWFkfk1T9QZ8X47Mc5twMtqRFzpYP/IFz4Ia5TOAG58ANzoEbnAM3OAdu0s5l/wzq8UseMsH5yTmX1UKPj5+jwpVIOPf4962gx699hwMnR3UuOw6l4nHuo3iayxS/BywWYnAOekhzmZoTHAJm4sUi8L405pUUC8FyD5yDANU5ZfrQTHzwEy5G27ngrL/i+RzOfRSN/63xKa/Hvxgxnudzn0PCud6U2h774uHy8L4V3OAcuME5cINz4AbnwA3OgRucAzc4B25wDtzgHLjBOXCDc+AG58DML4Z49YteldnPAAAAAElFTkSuQmCC" alt="" />

二、 我们开始第一个nodeJS程序,在桌面上创建一个firstNode.js文件。

const http = require('http');

http.createServer( (request, response) => {
response.writeHead(, {'Content-Type': 'text/plain'});
response.end('Hello NodeJS\n');
}).listen(); console.log('Server running at http://127.0.0.1:8124/');

三、 在命令行启动服务,进入相应目录输入:node firstNode.js

C:\Users\Linux>cd C:\Users\Linux\Desktop

C:\Users\Linux\Desktop>node firstNode.js
Server running at http://127.0.0.1:8124/

四、 在浏览器访问,输入: http://127.0.0.1:8124/

aaarticlea/png;base64,iVBORw0KGgoAAAANSUhEUgAAAboAAACPCAIAAAADVYl4AAAgAElEQVR4nO2daVQc15n3r2ec804y75k5byYziU9ikI0WCBFOYjtOYi12xlrssSxwhlgWyHFsWbIcb7JZhGwRawPtSLJAAiQQm2i2FohdILZm3zexdTc0zd6sArE0IJ73Q/VSVV3VXSwSQnr+5/eBrrp73fr3c28VQC4lVCLIw8zF+AqfuLLvxUWewbf2e4vdLogD4nJzKmTVss7WnqGewbHh8XsIYoSewbGW7qFqWWdOhSwwLs/tgni/t9gz+Nb34iKfuLKL8RUCpyLxTahCkIeWS/GV3rFlJ8Kyv/WJPRGYlFfdrLozMTg63Xd3undkSjUypRqe6kEQo6iGp1QjU70jU313pwdHp1V3JvJrWk5dTf7WJ/ZEWLZ3bNml+Eohs5H4JlYhyMPJpYQK77iywwGprueibhY1dA6O992dXvR7D3kE6Ls73T00cbO40e189OHLKd5xZZcSKkxOSOKXVI0gDyG+iVU+N8qPXElx946pbelBo0QWnL670/Wtve4+MUeupPjcKPdNrDI+J4l/cg2CPIT4JlSeCM3cdy6qXNqlGln8Wwt5JFGNTFXIu93OR58IzfRNqDQ+J8mVlFoEedi4nFx96UbZN97i1KJG9ErkvqIamcook37jLb50o+xycrWRaUkCUmvnw0uhQ8QXnrgET/jBP/kD8QZyDshFeNIP/skXyPdAzsETvvCEHxBfeCl0aJ7VIY8J/olVHoGpXqE3m3tGF/12Qh55WvvGfCIzjwYm+ydWGZmWJPBm3Xx40hue9IYf+MCT3kDOgnU4eN+G6n6QDUPdENxsh1058H/9gfhoHHOe1SGPAwGptZdulDmdvlZQ277oNxLymFBU3+F0+tqluNKA1Fq+mUmC0urnww+94Efn4F/Owv/xglNlAACSdvgmD3amwZdZcK0eAKC8F566AuQCPHkReMq58DJ56wvGR8t3/NnJvniNOhj/zrOEqbe+SKsPOviW5tOzTu+8Rl4+qC3qWScPejn+TmYC6lpwvniNmO2Mn285B99iFeKx09JEsf5OZq9duN+9W1gCUmpPhmaeCkppH1DzTO4Ye2JzoGjx7zHkkaFzcOJ0cOrJ0MyAlFq+mUmC0xvmw7+dhH8/BT84BkE1AAB/SwRyDJ44Ck94AjkGP/KCt64DAATdBnIS/vU8cJdzaKvZRwnB6d4vEw69fIhK5v2yhZNnekNwesI7FpbvXNZlT3jHYuuX6Q3Bh7aSDd7Bl53MNngHH9pKNji9Y8EsaIN3cHrDlxvohyzf+WirYRo9l53MLJze2UDMPkqY50B9abKQy05mZOuX6drOsrp/iNlOA5l9lOD5kaX+s8XWl6lRogYkveHLDbqRfNi5klzt7n09Nuc2/+S+b3ZZ5GlNHIM4KyrytCbE+lAVsxkaaY6HO7IvzLYYZhVVB1ZrztiHc/aLEk/vwh15MtKrZuTNOWTDLq3I05rwtIGjj/dztB8y4nPrDnjHXEmu5puZJDSjcT781zF48jvYHQ8AsDMOiCv880H48QnIb4PeURibAotzsDMeAMDaD35wHLgKSdi2wflYRmNohs8asnUv8+zeDWTN4ca9dI+z2LqG5YNUrsNbyQafY7ss1xymlWxhuS2AVmCAs5mF87EMnzUWVI2aBHs3EKI5wiTA2czCee8uS7NdCfMcqL0biIlCApzNNN33WUOIthe6wWkMzWgMPbyVVcgxdtt06bV9D3A22+CjG8l59mIOeIlydu4/F5BSQ30MSKnZuf+clyiHL33IrQb/hHIXr/Cihh7+mc1zA4c7ktWeOTRj4nYWfoK2Mcwi55AN5XdB2wghjvaMs1UHVuuMNcaew8U4Ghm0TWugRZ7W7LNVB1bTbZfu2pqzZLWjPWen6KXp88bYE0K2OTKbEWOvGyJ2G6oOrLaxXs22S90gLCGKals8LgQrVCPUR4VqxONCcFFti/FcpdJeF69w/4TykFsNhjMzKL2GhGU2zYf/PAi/OAqquxBfB0+4wddJ4JwMr16Gf6SBZxbsS4VdcXA6H2YAXNOA/AM4Cjliu+ZIU9gRW7LRdg1X3LTmSFNYZtNXGy3fDTTamCO2ZKPzuxa27+62JISY7U4MO2JLK8b2q8zEdy1sv6ISBzqv2Z0YdsTWbKOtmS5A253ILjPQ2czC+avdllQb5sNXG7nKZ9VFbL/SVnqcr4+GcSW9WGowM5vCMhPftbB8N7ApLNDZbKMP1YD592IOfLj/HEVgam1gaq3uI1/6kFv1ZyNyPAMTa1qH+Gf2fbJLVrHsElhmSidom0FdjMZwlM8ujRHY8jWe5zg9r5EAmaM0/amcQzbWh6oM+jiXb51F5+iFIAqFakShGtF9NJ6rvm3YMzDxbEROyK16w5kZfKuWhGfJ5sO/u4Bj0DTAhN2VmR+5gG8+TN+D0UnoGIaWAegegalpuNUERUqIvQ3/8i0YlvD1RipmdDmZdWktsf2as6KrLuYbL53cbWW+Ozn8KIdlEAuXk0dtyUbbtRYuJ7Nk4UdtzXdf2r5b+1Ff8qW1hhmF9/eqizmx/VrXgI2XtKeSt+sDXloXmE01353M6DKrdqpwbSPXHuVqwFFbXSEUmjExaMbao/Qm6Q7O61rPkVv1O93OsQjPaOBLH5re6BGQ7C/Ob1GNmfC1cO2icrVnjmbVqZH1IU97fb8dgzTeFMNeCLPCq3BHRhhV5GnN9Dt+u2T4Dq/LMAtkR23M2nnqYhZLa782bo2x59gx4LPLGHu6ya72zOE0cbbpLwFae4aPnr/KQqkNNvlQ9k9ciSvwCEgOTW/kmJkZdUSULZ8P//Y5HIkb7ejut/gWnnaD/3SBVd/BH09BZhPIe6H/LhxKAfIJiKugvA3+4xvgKiRl+3I7p2y5KNt3LbEyX86+yc0/Tjn1sZX+83LX7RvJ2qO67L5riZ1Ttlx01I5s9D31sZX5xymio3bmG+22H/WlmSNVBR1flnXSyuThqqs5IWSjr/Znq+1XqfYT849TqDSnPrYiy11PMRJo6qLSaFqoS0yVpkmvbeRRO1abnTYSE1rueuqoHSFW26/Knejjc9XVXFfFIhGe2bjTzeujb8599M25nW5e4ZmNRhKHpNcf8I4RpdcYndkx9lqXZCyE+aPLoG2EMHYhbQ4UsezSdCzJZ5ccy1V2iGfYPHYu1sfZ2qV+39NoSMvTHX2xrHqNBNQPOa2qkSPnAzy+v+rx/dUj5wNaTXklRUxW7QHvmJD0esOZGZZZRyIk8vnw00/BJ6kvt6rrWSd41hms98+scpv54cfgHDHV2DHeopr8NvYe2QkBeVDZBj91BsMSTu/RWKH5Jjvz5Xbrlts5S3zXbfKN8LQz35Nyeo+V+Z4UXUrqZ+dNLKuwc5bIIzztyCbfiGBXc23eCInvuuWupyXyCInvOipNsKs502JOz6q/wa7mVDkSeYQkxWE5WefJOkjVZeUQLD+9x4ps8tXldd5EzPekULkIZxvY5WhHhlaIrnCe9tit22TlECx33kTWeWr7Tg2IfvR812lrXucpp7eHPbaMeudFyK36D/ed3rnfa+d+rw/3nQ65Vc+XUpQjC06rcToTmlnVZnRa86xqjdolywW4nnKYWMNyekfOIRsDh+JxmQWPLjkbz9735LZL/S4qsyXMepfwQx6FauTw2ctHzwUcPRdw+OxlhTC7zK5pdzoTGpxWI8qRsSbntZw6EpXbMh/MPgaf2I7UvGbLL+Gnu+FkzKAos+/HH8HnAeNVsv7q5jtHxBP//D5EFk6WyKd+sReMleZpRzbtczSILpftSaUSuFB38vJ9jpvIOk9dRr91xM5Fk90vKmTfsk1+UZ52y/akRuX6rdMXY+fCrtFv3XKrZazKNvkZa2HIvmX6clIdl5N1nqyDVHusHENazuyxopfmsonqiDYXZ+HL950xbCSxcgzRjg/R5D2zx0ozLLSDUbktLpusHENaXDaRdZ5+66jSqAGhZ3mwhN2q/3DfKRZht+o5E0fmyC/Hl31zLrK4qd/otJ6nXXKYDt9DHiNpeni8ktdlmI7MLk3Qxiv3cWZrWWmMPnHSpmdrWwzfICwJFD3Dh7z8WCh6hk1mLG8e/OZc5OX4ssgcOWtyiiQN87XLZz4A10vdJaXlv/9q2uxDcLvcX1ff+OzHcDamP6WgKzB1oKCm55lPIKvyTlzhiNknPHbpaad1Rj/H5XYuuX7rtJZ3Zo/Vsj1+lIcuW6654V0MoksXWiHrPHXWoLUMraVyZxQOp13mpjou13v6mT1WhKrU047onC5k3zKt7+sT5LZEedrpnE5vr5TvM+3SZRMhxMoxhP4FQMnK0XPfMq3R6zq4UHbJ7A7Vd791hMfxufjA5SRFZHZjZHaj7iNnYlG27Kwo63RwSl2b8Zk9F7skhvGXfjFr4iEPp8ExTYfPvKbo2wX6EvTWqTtLq1TXEY6H11yLcXpEyc7C0TUj62vOFfqS4+BpX4pW1XCralj30WTGxs6R08EpZ0VZomwZh11G5ynmw68+hLfcxmqrij4707tsB7z1zVhFeXliZn3d7eqvvAdecZ6uqGm5WdDR1tZ6ImLI7EMwLMF1MyGb/aPz/NcTK8fQm47L33bN81+/2T/62NvLPrnp9YnVsk9uUil1P7tuJuuPafMSTcjpdextstk/Ok8RfextjY+E+q9fvs8rTxGd57+evO3Krpp90HWzlWOo0f6G7lumz3LTcbmmGdF5/usJrSXa9F6fWOkOOm4muo7om73Zn5ZM3xh9RqKrggF9WKINuuC6maw/RmuSVpxZjOP1iZWmR8fe1rbQfz1Pqzi5JM770PlEVE4T9TEqp+lD5xOXxHmcicOzmo74JQQlFrcNTMzFLrX7d9RH7cMf3aMeT/ZbjXS7oQeJBjuPQdsYI2l9qIr+9iIlrbMYvlREP2L4ZiXtrL5MQ+9jx4D24QaPerhaQpPOWA0Octol5/brEqGoWnrw1MVWleZLt1U1fPDUxaJqqcmMnUOTIcklR/wSwrOaWJMzIreJiAta58MLu8DmQxAlNOQXlr/y+eQz2+EvB0Z8RM1fn1P98n0wexccDg23NVfml0hf3Ttt8xHwFnX87WV/TxMXpO1Y8fY+zUHNDb/+uCbNub9bLft72r7X9Zd6/XEq2dv7ClrFx98mr/uLC1r3vW61I6xVHOa2jOUWr/uzKqUXRQghK9zOzW807icc9keTbtB4oUbvwbc8tlCZUNJGP5JQ0hZbqDRMGZOvEGU1unpdyyxXLvj9Y/SRxSxeGHp8WNKDoBqe6mX+ZZZewX9JOqey1dXrmiirMSZfwZqiJLZQOR9e2A3P7YSNX09k51XmFpR/dVa14Sv1r3fCy59O//Xw0NlQRXFJaXJGzf+4jK/+G7y4G+ZZHReXXyFvuy18sciDRpzfciWx/MD5iFrlnQd688/iRcXHh8d3EOrahw+cj7iSWC7Ob2FNURJX1D4fnt8FL+wGmw9h/edTngFt6dnVeQXlWbmVkvyKoqKy9JyqY4Ftaz+bWv0BvLgbnt8F86wOeVSJLWyLljQfD0r1jc5R9vP9qvjcWdKxEvIg6RhU+8XknAy+GZOrYM1ScqOkYz68d2zs+V3w4m749U5Y9Vd4cffMGy4TdvtHbfePbvxa/fwusHoffr1T45XvHRubZ3XIo0pcUZsoq3HvscCSxu5Fv2GQx5zixp4vPQMic5riitros5TEl3YiyOJyo6RDnK84HpTiF52hHBhf9LsFeczpHFL7RqcfD0oR5ytulHToJipJKOtEkEUkvrQjtkh58XqB04mg263GX7dEkAdEQ3u/88mgi9cLYouU8aUd1FwlieVdCLJYJJR2xBa2+t8o/uyIf1Z5E/6fCeQhQTUyJamQfXbE3/9GcWxha0JpR2J5F0mu6EaQB0lSeVdSWWdCafuNImVMrvRMSLrrqSBJpbTv7uLfJAiio+/ulKRSuu9U8JmQ9Jhc6Y0iJUmp7EGQB0NCaXt8cZs4T37tVq1fXOGpoNTvfMS+kTdlnQP4f3GRh5C+u9PyjoGLEan/8BafCkol334fiSAPmCN+cVfjc7PLpS3dd4bGpnENjjy0qEamhsamW7rvZJdLyfD4PQR5MIxPzoyq790Znx4amx4cm+6/i0aJLA1UI1P9d6fJorcDQRBkSYB2iSAIIgjSPTyFIAiCmIR035kSgkJ1t0HZXyXrrpR2lja0lza0V0o7q2TdDcp+hequwEIQBEGWLqTrzpQR2gfV9cr+0oaOCmlXY/tga+9oe/9459Bk59Bke/+4QnW3sX2wUtZV0tBer+xvH1QbLw1BEGTpYswuG9sHSxs7brf2tg+MG49ROwfV9a19JQ0d9cr+DjRNBEEeRbjtsn1QXSnvqpJ3mzRKOu0D4zUtqkpZV9vAxKJ3DEEQZGEhnXemWCh6R0ubOuqV/Z13JruGp2ZF553J+raBpNyq6xnlN7IrEQRBHhlI59AUHWX/RHF9e2Pb4Hw8WNZ5p6qpfXxCPY1CoVCPith2WSHtuq3onX/UWq/sb1R037t3D1AoFOqREOkYmtJRpxwol3Z1Dk0uyDq/Ut7T0TN4PxqtUqnuR7EoFAplRHq7bO2fKKprV/aNC7HCwmpZcW2z8TRt/RPlTe3j6ukFb3Rtbe2Cl4lCoVDGpbfLWkVfTYugZXh6QeXla3H+YbGSsgbjKW+39jV39plsRFdXV0FBQXR0dHR0dEFBQXd3t/H0aJcoFOrBi7QPTlEU3m5v7RtnbWUakpZfeTUiUXQjIzzuVkB4fMfgpJHEbf0TRXVtMzMzfNWPjIykpqZKJBKVSjUxMTExMaFSqXJyclJSUkZGRvhyoV2iUKgHL9I+ONk+OCnrHilt6KB+XccIafmVVyMTIxIyY1IkoviM/Komk1nKmroGhsc56x4eHo6MjOzt7TU81dvbGxERMTw8zJkR7RKFQj14kbbBybbByeqW3tvK/o6hSSOk5VcGRiZGJGZFp+SKErIKq2XG01PcVvbLO/sNK56Zmbl582Z/v/5UampqWlqa7mNfX19aWhpnZMprl7E7CCE7YulJjz9HNKKO0w5o9NzxWo5SOM8w8jPqYZ7nyghQJ/b6TqOALPZxL3Ed7VBWgDYl87j2FCM/CoV6INLYZam0W95z17hXXo1KjEzMFt/Mj07JLa5tFuKVHUOTsu6RmhaOvciurq78/Hz6EZZdAkBeXl5XV5dhXi67pGxqx47n6DYWu0NnXLXHnzN0sdrjz7Fdj5YudoeBJ+oPcZVHufWOHZx2mRWgc7k6sZfWBinzCwig22Kd2Etnh7Rc2s9eXl5olyjUIkhjl0X1HS29Y0a9MikyKVucln89rSAmNTcsLj1AFO8Xdt0vVOwXKvYNEYtu3OLM29I7Vt7UYVhxUVGRyfeBenp6iouLDY/zL8Y5/I92iu1iPG6pO2RwPpbuhLHctsh3PItmiVkBzKiR/ZmZTe+NWQHfBWTVidEuUajFEFEOTCoHJvNqlG0Damofk4WkvPFqVGJUcs71tILY9MLY9MLraQXRqbmRSdmRiVkUooSswMgEzuxtA+rC20rDiq9fvz41NUU/YhhdTk5OXr9+3TDvnOwydgdHqMi1EGdEp4wUTMflq4uZSR8eamPKOrEXezXNb5d1Yi+6yQZkUeWgXaJQD16m7TK7pO7ajVuxaQVxt4r4iE0vDL1+c1Z2KRaLJycn6Ud8fX19fX3pRyYnJ2NjOQxpDnbJYY1cbsnKz0rC/Dhbu6RtXrLdjs8u6c6oS4N2iUItjjR2WVTX0awa4/O7m/lVMal5cbeKbmQU38gojrtVRO1gRiVLKCKTcmLT8jmzN6vGyho5FuMFBQWsxbihXfb09BQWFhrmna1dcmxC8pndgkeXOtEskbZ3aXBOL0YqVm60SxTqwYu0Dky2DkwWN3VLu+9S+5hcqNMKqmNu5sdlFMdllojTC8qbOtqHpphw523qGqlq5n7Uk5ubSz9iaJcSiUTwox7NGUML4/JKgV7HTsT8PLu9S6YjsvzR0C5Zjqp/Uv4d7yNzFAp1f0Va+ydb+ycr5b01iv62gUl+1On51eKb+TcySq6nFYbFpRfWKIym11Cj6Jd1zPFFotTU1Nm9SMQ2OM7H4QAclqYzVVoJukT6YvT59OnYlXAvxtmxosHzbqZ7GokfMbpEoRZHGrts7Bwpru805X3q9IIa8c3CuIySqJTcq1HJhTUtJu2ypKGrn+c19fHx8dDQUL7X1K9duzY2NsaZkfdFIpp2xNJeoGS9R8nhorQY1PDNSnp6w5cyGWZqUB3zUY9BaMgKG3WPguhieSPaJQq1OCKK/kkKSY2yWTVObWXyo04rqBGnFcZllkYm5wZEJhpPr+ibyKtRCvwlSOovyuEvQaJQqIdTeruslPdWyHtN2eWkckCdXlATk1YYlZqfVVpvPHG1ol/aLvRPbIhEIpFIhH9iA4VCPZwiLf2TFFLVuKRGKVeNUw9/jKLOrZTlVcmVg8aSNfeOF9W1jamnTLdilkK7RKFQD16kpW9SR4W8t6SxR9GnpjY0jaAcMJGgtX+ytEml6DIdWs5BPT0996NYFAqFMiKGXcpVE4V1nZXN/Sat0CTVioEaWee9e7y7ligUCrW0RJr7JulIe8YltW01rYO6Pc05cLv9Tml928Tkwi/DUSgUarHEtsvmvsm6jpHsqtZyed/cvLJc3heeWnI1Pi84IR9BEOSRgTT3qQ1p6h7LrW0rrO+U9owq+tUCkavGihu7JbVKWc+YgOdFCIIgSwki71VzIu0ZL2lSZVUqSqUqWc9YS5/aCLKesXJZb2ZFS2FDt7Rngq9MBEGQpQuvXVI0do0VNnRnlDfn3W4vl/fVdww3do3KVRNy1URj12hd+51yeV/e7XbKKBs6Rxe9PwiCIPcJE3ZJIVNN1CrvFDf15N/uyKlWZla0ZFa05FQr8293FDf11CrvyFQYUSII8ohDZL1qBEEQxCRolwiCIIIgMpUaQRAEMQmRqtQIgiCISdAuEQRBBIF2iSAIIgi0SwRBEEGgXSIIgggC7RJBEEQQRKpSr93v+8L2z3/33l4jvLD987X7fRe9ucg8kUmbF70NCPIwcOk2WIaDxTVYGQ6WIlgZDiuuwcpwOFcNRd2QrIQDxfDbKDAPBSsRXLoNUpWarN3vu3a/r1tEzjdREiO4ReRQKRe9k8h86Dv9p7ZUv0VvxpKjg/w/k1ApwcMDPDwWvcGISVaGg0UY/DYaVoXDs9dglQhWhsPKcHArhLPV4FMLaW0QIYPXkzSOKVWpycot779yOOyNE5F/OnLtVR7+dOTaGyciXzkctnLL+4veSWQ+tNTVDrmZyRvqF70lSwu0y0ePVeHweS7cbIOjpfCbKLASgXUEWIlgWxrsK4S/ZcAfr8PhUihVgW0K/DxEY5cfrD8Y8srBkPVcWNrtMn/FzmKzA5Vg5ZYPFr2TyBxoS/VTFCRQP7cnfd93fG1T99j9rzfalti4SB5sZyUeloQQ4nBR4mFJHC4uULF0Q5ztWSNctCe2wWqpSi0NdrB0r5BKPCzto2mjp5elvYMl47/YazOq1EnuNpbuFfRik9xtCCFEP/gVLtaEkSbYgVh7JM2ytdpi+WTjIlFLgx0IcbhoJLG+g7pB4JokwQ5G61qAK/tiDHSPAgBMTsP2NPihPzwVDD8LAv86KOiB5jtQ0w/rb8CubMjtgnfTQKpSkxVvvr/W/SonL+/3zyuvAYDuobvUkRVvckeX+qGZ/TWYK4zJZHgNHhgX7Q1mzCK1xAiK8pwBd4sukQvlkr3n3+yMPihweHW35ZyukckBoV/HBRi9i/ZaX1gCdhltq2shZZfUdGJM5mhbrnsqyd1BN1Zau9SPJI976sfZ0prxeZaXuMLFmjawDIvX9IUQBxeaiXMbov6S8dgl701NG7d58JIYBidg6h7cmwGxHPYXwtFyOFIG/nVwqAxskyG4EdTTsDUZvsiD3dkgVamJxRvvvfzNZYoVWz54eu1bT69965nX3vmjm++v/sdh+O4o9ZFKYPHGe4a1Jrnb6F0y2GEed9dsp9pD4U36+1PTKvZkfUiQKzp7z7/Zd/pPMmmzTK4ccjNTVOTxj63uFqpwsddcXGZPF+IaBTsw7lWJh+W83FktVVW4WGtrvG92abgAZyzGf7IGfrJGSJmMqFBrl1KWfdBuKH0oqrsomlCabpFML9OksXGRVLhYU9k1U5Rx2856kI3aJa13zGBCGxXSms0hqlXBDsQ+2iA7Ze4LY5e/i4HecQCAe/cY/5Bn+h5MTEOKEtbGgu9t+DofngqGFeEgVanJs5sd/rDv0h/2XXrJ6fu8sioqQ/fgyCsHLo9NTOo+Umme3exgWCvtKj5IHk67fIgaRiFvqO+58oGiPIf62BF7fMjNTFGQpMiJ6oh2584l8bDkupEW2i51NzAN7VJurv1dQnbJ7L7Ew9LegRZoUy1nGJPeRpkOxVyMG9ilqsLFmsN02PY0u0Hms0v9ql9nl7RLrLU5ZvuZ0aU2mmZGl9zlzI+XxNA/ATMzcG8GmoeguAfKeqGyD9TTGt+MksHKcPhVhOa5uVSlJs9sfPclpwsvOV3472/9xtXqlf/955//8Y3lb37wktOFV/f5DN8dpc5SPLPxXcNa+b6maN8MnDNYP10u2hNLdw9b/ZUzWFbQvo60o8Z5K9JnhrYiiYclcXBxt9Hm1aexdae3h3ctYxxDE6EfMRwE2ln6jpLmPk9yt6F/qc7/e0imVLXHnxk4bDNw+DftSd/LlKqW0owBd4uWulr+XPTo0nBgqY7oj7CCa9pB/TW6aE/Ya21uO6OyMPfaNPER5zWKtiU2Lu4OhGinECX7aGb5tCW/fo7RpyXtZ67JzGeOfEdMkqSZkEb3IvT7dw4X6SZFC0WlXHbpol99MzNyXmuhdsnc/uKUfbRuVpuILoXZJdcGqI2LZMHssm8cAEA9DZ/lwtOhYBMJViI4Ww33ZuDeDNQOwOuJYCbDPIcAAAi5SURBVHENVolgFfVkfNlrf3lxrxdFfn0LZavJ2fkv7vV6xfX74bujurMv7vVa9tpfuCrW3Dn0S8jYgtGFDPx2SZgz2yBeo59l3znaqhn3mN7EJR6WhOlf2obR6qVFJZxRDz+GdklZHu8g6L42JR6W1jaWukZaeyTp7yJmFxaCltKMbr8dg64/67nyQUtNiYn0mhuVMSnpPdXvnemvKeeF034HGHaE2y61g097FqEdT85rFG1L6Jt9nNElw/11F0UXsCS521ha29BjIsMBWWi7jLYlDrYmIqYKF2udAVGux2U92jlDfxZk2AXuBy8PZDG+YNGlu+6bbMHsUjUGADAxDV/mwYpr8GIMPBcFV+rg3gzMzEBlL7wWDyvCaXZp/uqfn//s5POfnfzt34/9/A+bn/rdhhfechi+O/r8ZyfXOp3Nq2umzlKYv/pnozNA9w3JCv20k9tYdKnfxGFfRYNnZNr7xHi0ok3AjjJouXSnDDZTeDfLDWYYf3TJMwjai53kbmMbrA8qdberfpYsxHKy7/Sfuv12dMQeVxQkyKTNckVne/wZ03ZJ7zXt24X9dFX/hc/5sDXaltjY2vOYvrHoUk3zOPp1NLxGhoNsYJeshtGP68xI83VFd2QGfItx4wtzXiQeLsHsXSz2Ew+Jh629g6XeLg0GytojSTsmRhfjmkvJjgB44miedQPrGhmxS/2Utg1Wz3Pvkn5PaQzEPnoB7VKzdzkDdyagZxRUY9A/rt/E9KmFZ8M0K3GNXT79it1vPvH8zSeev//i5OiEmkqXWlpHHWTx9Ct2pm8wTX8W1C45ruuC2+UcLwD/3iWfXVLXXjOttV/CmpQLbpctNSXKW1e7RC69598ccLcYdP1Z39kNsymBsaCmLYF1NqpNwG2XxNLahmc70sTepWYo6MG4MXvVlSnYLqm7TnMHUhl5V6YLbJfamUPvPkdgq28bfX1NCKGHWsb2LhnzilNzeKWE5bNsu6S8jPnFw3rMLTS69ODcdbV091iYRz1iUI3DzAzMzMD4FNxRw7AahtQwOAGdoxAhhRdiYGU4WIlgxTWtXf5i3dbndh8WyC/WbeWa9PremliH0pdFtKeihg+XdRuULto3JAwe1BruXRpZjDM8mmcxTl+wz+JiGHkyzjMIVNtsLOlLcpZH6GaV3s1ZMZfhGydsAkIiDA/KFZ3UA3HOs1yTm8suaZt9Se42xKBttAvHeBePoyIjT8YlHpbExtKaduk5rpEAu+RZjGsKtLahL8n5hlS4Cc7ZLukTlRlMcQWMEiF2qf+ZI7pU8a6jZzPhDQqhPtKnrrVHksb7uCP3ub9INKf7QsfvYqB7DABgbArOVsNfM+DTXNgjgU8lsD0dfimCleFgEwlW4bTo8udrtqze+Z1Afr5mC0/rmYG0di4yInDtZdN+rXlwR5cqeqxOf1xDSTeynI96uFrCEXXSvqK5ngbM6gGL0fcuuQeB6QsMB19wuxz+8oeGSI3bJTMY0Y+GZvVt4yLR99rS3YP5zITeWf010uyvGS7uGOsy9gW9aM/a/TC8RkLsklkL85kya47xXfoHYZf673htLwxvBB3MvV0eu9QvWhfKLjlmHddjem0ybWM03se9iJ77a+rzs0tq7/LeDKin4dNc+IEf/CQQ/iMQfhwA/3UVng4B81CwDAdLenT51B9et37/W+u/HTDN+98+9YfXZzW4Dztz+t2GpYJxQzR+FmEh5JcgDRfmxuF8A0/zRaVbGLGjS9p7HbonXcyvGfpXHWOxxanZ2CW3E7FX1vqNJsoHqW9WTUuYz/S1WRbnNfVfR0FxDwDAzAzIhyBcCuFSiJRBhAyuNUFcC1yogd+LYUU4rNJFl2v3+674309/+Z7bL/+63xjvua34308fgT+xQft1CIPfDHu0CAiJMM6it3AJcT/sEllcVoWDwy3Nw3FO3VDAKhFYhsOqcLCOAKnuD7j99MUNT/1+sxF++uKGR8ArpSo1Y4G8eL86iSDI4nK1AawjYEsSXKwFkQzCmiBMCmFNcE0KIhkcLIXfxWheunwuEq42aO0SQRAEMQnaJYIgiCDQLhEEQQSBdokgCCIItEsEQRBBkMj0CgRBEMQkhPelIxQKhULRhHaJQqFQgoR2iUKhUIKEdolCoVCChHaJQqFQgoR2iUKhUIKEdolCoVCChHaJQqFQgoR2iUKhUIKEdolCoVCChHaJQqFQgmRgl6XOKwkhhGwJZP5sRIFbqL9NvtK5VNDx2YhqgqYEbYGCSyx1Xikwsa5oQu+x/ugWZ+ct8+gGCoVa+uKKLgO36P2x1HmlCbPU5+L2Jb7jglXqvGWlvhGzLa50djZH7zutqlLnlfNyfRQKtfQ1K7ukhWCG3jEbu6QVZNqMS523OAfqmsEojqccWlAYSLdLo+3XJuG0SxQKheK2S/q6VGcZbKNieYlgu2RkLXVeacqTKMPT2p6+OJ5y6CUyFuMm2q89zu27aJwo1GMv09HlFr07scQMDIXaJdOQBKyWmUapK46nHHZxtPTc7WduN7BL1R9Hx0ShHnMJt0tTtnbf7ZLKOme75KuHYZf8W7XCN3FRKNSjKeF2aWrdPIvFOP2A6UcxzCbwLK71qdj2p0vP135a4EiPIVnJ+cJOFAr1uMjALrVrVvqLRLTtS87FLN8il2/xzijGuAvpSuHYmeQrh17zFmemw3JvJuiO0xrDaj8uxVGox134mjoKhUIJEtolCoVCCRLaJQqFQgkS2iUKhUIJEtolCoVCCRLaJQqFQgkS2iUKhUIJEtolCoVCCRLaJQqFQgkS2iUKhUIJEtolCoVCCRLaJQqFQgkS2iUKhUIJEtolCoVCCRLaJQqFQgkS2iUKhUIJEtolCoVCCRLaJQqFQgkS2iUKhUIJEtolCoVCCRLaJQqFQgkS2iUKhUIJEtolCoVCCRLaJQqFQgkS2iUKhUIJEtolCoVCCRLaJQqFQgkS2iUKhUIJEtolCoVCCdL/B3WS1Us7bjv/AAAAAElFTkSuQmCC" alt="" />

  如果你有java web开发经验的话,在使用tomcat作web容器的时候。它会检测修改的java内容,自动重启。同样的nodejs也可以使用supervisor来实现相似的功能,它会监视你对代码的改动,并自动重启 Node.js。安装:npm install -g supervisor。运行上述的代码:supervisor firstNode.js。

友情链接

nodeJS基础---->nodeJS的使用(一)的更多相关文章

  1. [转]Nodejs基础中间件Connect

    Nodejs基础中间件Connect 从零开始nodejs系列文章,将介绍如何利Javascript做为服务端脚本,通过Nodejs框架web开发.Nodejs框架是基于V8的引擎,是目前速度最快的J ...

  2. Nodejs基础中间件

    Nodejs基础中间件Connect   http://www.tuicool.com/articles/emeuie 关于作者 张丹(Conan), 程序员Java,R,PHP,Javascript ...

  3. Nodejs第一天-{Nodejs基础 深刻理解浏览器 环境变量 基础语法}

    Nodejs第一天 1.什么是Nodejs ​ Nodejs是一个可以运行(解析)ECMAScript的环境; ​ ECMAScript是规定了一些列的语法 ,这些语法想要解析的执行就需要放在某个环境 ...

  4. nodejs 基础篇整合

    nodeJs 基础篇整合 最近有朋友也想学习nodeJs相关方面的知识,如果你是后端想接近前端,node作为一门跑在服务端的JS语言从这里入门再好不过了.如果你正好喜欢前端,想走的更高,走的更远.no ...

  5. 前端知识体系-NodeJS相关】NodeJS基础知识全面总结

    NodeJS基础知识 1. Node的全局对象和全局变量 1.1 全局对象:所有模块都可以调用的 global:表示Node所在的全局环境,类似于浏览器的window对象. process:该对象表示 ...

  6. nodejs基础【持续更新中】

    简介 Node.js® is a JavaScript runtime built on Chrome's V8 JavaScript engine. Node.js uses an event-dr ...

  7. nodejs基础部分(一)

    前言 业余时间充实自我,入手学习了解一下传说中纯事件驱动/非阻塞的js架构 --nodejs 好记性不如烂笔头,本系列随笔用于整理记录学习nodejs过程中的心得 目录 nodejs简介 nodejs ...

  8. Nodejs基础中间件Connect

    http://www.tuicool.com/articles/emeuie 关于作者 张丹(Conan), 程序员Java,R,PHP,Javascript weibo:@Conan_Z blog: ...

  9. 02 nodejs命令参数(NodeJS基础入门)

    声明:本文章可供有一定js基础的朋友参考nodejs入门,本文未讲解nodejs的安装,如有需要的同学可以加QQ3382260752找我,进行交流学习. 建议使用开发软件:webstorm或hbuil ...

随机推荐

  1. MongoDB(三):MongoDB概念解析

    在上一篇文章中讲解了如何安装MongoDB,这篇文章中讲解一些有关MongoDB的概念. 不管我们要学习什么数据库,都应该学习其中的基础概念,在MongoDB中基本的概念是文档.集合.数据库,下面挨个 ...

  2. DataTable使用技巧:DataRowState

    DataGridView:获取 DataRow 对象的状态,共有5个枚举值. Added 该行已添加到 DataRowCollection 中,AcceptChanges 尚未调用. Deleted ...

  3. 在网页中使用SVG

    SVG可以作为一个独立的文件存在.但更多的时候,我们希望他能集成在某个更大的文档中,比如HTML.将SVG插入到HTML中主要有以下几种方式: 将 SVG 作为图像导入 将 SVG放入 iframe ...

  4. android抓包工具——使用fiddler4在安卓手机抓包

    Fiddler是一款非常流行并且实用的http抓包工具,它的原理是在本机开启了一个http的代理服务器,然后它会转发所有的http请求和响应,因此,它比一般的firebug或者是chrome自带的抓包 ...

  5. jquery对象和javascript的dom对象转换

    Jquery框架为jquery对象定义了独立使用的方法和属性,它无法直接调用dom对象的方法,dom对象也无法直接调用jquery对象的方法和属性. Jquery对象和dom对象是可以相互转换的,因为 ...

  6. Windoows窗口程序四

    子窗口的创建 .创建时要设置父窗口句柄 .创建风格要增加WS_CHILD|WS_VISIBLE HWND CreateChild(LPSTR lpClassName,LPSTR lpWndName,H ...

  7. C/C++预处理指令

    预处理指令 Preprocessor Directives define undef ifdef ifndef if endif else and elif line error include 预定 ...

  8. 为什么要把session存入数据库

    比如网易的通行证,一个session能进入很多的网易下的网站

  9. javascript删除字符串最后一个字符

    搜到很多无用的答案,这对新手来讲是很耗费时间的事情,我把正确的方法贴出来,以便有的新手不再踩这个坑. JavaScript slice() 方法 定义和用法 slice() 方法可提取字符串的某个部分 ...

  10. (转)获取android源码时repo的错误

    获取android源码时repo的错误 今天用repo获取android源码:../bin/repo init -u git://android.git.kernel.org/platform/man ...