1# 日志打印<a name="ZH-CN_TOPIC_0000001163932220"></a> 2 3## 导入模块<a name="zh-cn_topic_0000001127284842_s56d19203690d4782bfc74069abb6bd71"></a> 4 5无需导入。 6 7## 权限列表<a name="zh-cn_topic_0000001127284842_section11257113618419"></a> 8 9无 10 11## console.debug<a name="zh-cn_topic_0000001127284842_s298a3cf59a3b470dbb0742706102ced7"></a> 12 13debug\(message: string\): void 14 15打印debug级别的日志信息。 16 17- 参数 18 19 <a name="zh-cn_topic_0000001127284842_t87748b0ba4e648079d53f9deccf4bfb2"></a> 20 <table><thead align="left"><tr id="zh-cn_topic_0000001127284842_rc5033ad045c14c2e806d59041aab002c"><th class="cellrowborder" valign="top" width="12%" id="mcps1.1.5.1.1"><p id="zh-cn_topic_0000001127284842_acf783ab6043e4ee1a7bb73b73a091e0b"><a name="zh-cn_topic_0000001127284842_acf783ab6043e4ee1a7bb73b73a091e0b"></a><a name="zh-cn_topic_0000001127284842_acf783ab6043e4ee1a7bb73b73a091e0b"></a>参数名</p> 21 </th> 22 <th class="cellrowborder" valign="top" width="9%" id="mcps1.1.5.1.2"><p id="zh-cn_topic_0000001127284842_a6736505551534b819d5a6376065a25f6"><a name="zh-cn_topic_0000001127284842_a6736505551534b819d5a6376065a25f6"></a><a name="zh-cn_topic_0000001127284842_a6736505551534b819d5a6376065a25f6"></a>类型</p> 23 </th> 24 <th class="cellrowborder" valign="top" width="9%" id="mcps1.1.5.1.3"><p id="zh-cn_topic_0000001127284842_ac15c2a3de0e046af917cf09b48b3b46d"><a name="zh-cn_topic_0000001127284842_ac15c2a3de0e046af917cf09b48b3b46d"></a><a name="zh-cn_topic_0000001127284842_ac15c2a3de0e046af917cf09b48b3b46d"></a>必填</p> 25 </th> 26 <th class="cellrowborder" valign="top" width="70%" id="mcps1.1.5.1.4"><p id="zh-cn_topic_0000001127284842_aeb94b88e78974288bab1b4940b50c840"><a name="zh-cn_topic_0000001127284842_aeb94b88e78974288bab1b4940b50c840"></a><a name="zh-cn_topic_0000001127284842_aeb94b88e78974288bab1b4940b50c840"></a>说明</p> 27 </th> 28 </tr> 29 </thead> 30 <tbody><tr id="zh-cn_topic_0000001127284842_r95c56d5cd62d4b518c3e7a3f158ed7fe"><td class="cellrowborder" valign="top" width="12%" headers="mcps1.1.5.1.1 "><p id="zh-cn_topic_0000001127284842_a7af41aec9a404f418202d90c61774825"><a name="zh-cn_topic_0000001127284842_a7af41aec9a404f418202d90c61774825"></a><a name="zh-cn_topic_0000001127284842_a7af41aec9a404f418202d90c61774825"></a>message</p> 31 </td> 32 <td class="cellrowborder" valign="top" width="9%" headers="mcps1.1.5.1.2 "><p id="zh-cn_topic_0000001127284842_aed6ae868d61349afa8f0e250108f8e47"><a name="zh-cn_topic_0000001127284842_aed6ae868d61349afa8f0e250108f8e47"></a><a name="zh-cn_topic_0000001127284842_aed6ae868d61349afa8f0e250108f8e47"></a>string</p> 33 </td> 34 <td class="cellrowborder" valign="top" width="9%" headers="mcps1.1.5.1.3 "><p id="zh-cn_topic_0000001127284842_ab72ac8cc02e34da4b717ca144fc521c1"><a name="zh-cn_topic_0000001127284842_ab72ac8cc02e34da4b717ca144fc521c1"></a><a name="zh-cn_topic_0000001127284842_ab72ac8cc02e34da4b717ca144fc521c1"></a>是</p> 35 </td> 36 <td class="cellrowborder" valign="top" width="70%" headers="mcps1.1.5.1.4 "><p id="zh-cn_topic_0000001127284842_ac53e6549d32f413e9c51cd8a53f4650a"><a name="zh-cn_topic_0000001127284842_ac53e6549d32f413e9c51cd8a53f4650a"></a><a name="zh-cn_topic_0000001127284842_ac53e6549d32f413e9c51cd8a53f4650a"></a>表示要打印的文本信息。</p> 37 </td> 38 </tr> 39 </tbody> 40 </table> 41 42 43## console.log<a name="zh-cn_topic_0000001127284842_section146351482051"></a> 44 45log\(message: string\): void 46 47打印log级别的日志信息。 48 49- 参数 50 51 <a name="zh-cn_topic_0000001127284842_table1852992312613"></a> 52 <table><thead align="left"><tr id="zh-cn_topic_0000001127284842_row953019231468"><th class="cellrowborder" valign="top" width="12%" id="mcps1.1.5.1.1"><p id="zh-cn_topic_0000001127284842_p353020231164"><a name="zh-cn_topic_0000001127284842_p353020231164"></a><a name="zh-cn_topic_0000001127284842_p353020231164"></a>参数名</p> 53 </th> 54 <th class="cellrowborder" valign="top" width="9%" id="mcps1.1.5.1.2"><p id="zh-cn_topic_0000001127284842_p15301423361"><a name="zh-cn_topic_0000001127284842_p15301423361"></a><a name="zh-cn_topic_0000001127284842_p15301423361"></a>类型</p> 55 </th> 56 <th class="cellrowborder" valign="top" width="9%" id="mcps1.1.5.1.3"><p id="zh-cn_topic_0000001127284842_p853022316618"><a name="zh-cn_topic_0000001127284842_p853022316618"></a><a name="zh-cn_topic_0000001127284842_p853022316618"></a>必填</p> 57 </th> 58 <th class="cellrowborder" valign="top" width="70%" id="mcps1.1.5.1.4"><p id="zh-cn_topic_0000001127284842_p1953072310614"><a name="zh-cn_topic_0000001127284842_p1953072310614"></a><a name="zh-cn_topic_0000001127284842_p1953072310614"></a>说明</p> 59 </th> 60 </tr> 61 </thead> 62 <tbody><tr id="zh-cn_topic_0000001127284842_row6530823560"><td class="cellrowborder" valign="top" width="12%" headers="mcps1.1.5.1.1 "><p id="zh-cn_topic_0000001127284842_p135301231364"><a name="zh-cn_topic_0000001127284842_p135301231364"></a><a name="zh-cn_topic_0000001127284842_p135301231364"></a>message</p> 63 </td> 64 <td class="cellrowborder" valign="top" width="9%" headers="mcps1.1.5.1.2 "><p id="zh-cn_topic_0000001127284842_p15530523265"><a name="zh-cn_topic_0000001127284842_p15530523265"></a><a name="zh-cn_topic_0000001127284842_p15530523265"></a>string</p> 65 </td> 66 <td class="cellrowborder" valign="top" width="9%" headers="mcps1.1.5.1.3 "><p id="zh-cn_topic_0000001127284842_p165301323567"><a name="zh-cn_topic_0000001127284842_p165301323567"></a><a name="zh-cn_topic_0000001127284842_p165301323567"></a>是</p> 67 </td> 68 <td class="cellrowborder" valign="top" width="70%" headers="mcps1.1.5.1.4 "><p id="zh-cn_topic_0000001127284842_p853019231265"><a name="zh-cn_topic_0000001127284842_p853019231265"></a><a name="zh-cn_topic_0000001127284842_p853019231265"></a>表示要打印的文本信息。</p> 69 </td> 70 </tr> 71 </tbody> 72 </table> 73 74 > **说明：** 75 >console.log\(\)打印的是debug级别日志信息。 76 77 78## console.info<a name="zh-cn_topic_0000001127284842_section93434457711"></a> 79 80info\(message: string\): void 81 82打印info级别的日志信息。 83 84- 参数 85 86 <a name="zh-cn_topic_0000001127284842_table611782915816"></a> 87 <table><thead align="left"><tr id="zh-cn_topic_0000001127284842_row1211714291989"><th class="cellrowborder" valign="top" width="12%" id="mcps1.1.5.1.1"><p id="zh-cn_topic_0000001127284842_p41174291587"><a name="zh-cn_topic_0000001127284842_p41174291587"></a><a name="zh-cn_topic_0000001127284842_p41174291587"></a>参数名</p> 88 </th> 89 <th class="cellrowborder" valign="top" width="9%" id="mcps1.1.5.1.2"><p id="zh-cn_topic_0000001127284842_p711715295817"><a name="zh-cn_topic_0000001127284842_p711715295817"></a><a name="zh-cn_topic_0000001127284842_p711715295817"></a>类型</p> 90 </th> 91 <th class="cellrowborder" valign="top" width="9%" id="mcps1.1.5.1.3"><p id="zh-cn_topic_0000001127284842_p101171729289"><a name="zh-cn_topic_0000001127284842_p101171729289"></a><a name="zh-cn_topic_0000001127284842_p101171729289"></a>必填</p> 92 </th> 93 <th class="cellrowborder" valign="top" width="70%" id="mcps1.1.5.1.4"><p id="zh-cn_topic_0000001127284842_p17117162911815"><a name="zh-cn_topic_0000001127284842_p17117162911815"></a><a name="zh-cn_topic_0000001127284842_p17117162911815"></a>说明</p> 94 </th> 95 </tr> 96 </thead> 97 <tbody><tr id="zh-cn_topic_0000001127284842_row411762913814"><td class="cellrowborder" valign="top" width="12%" headers="mcps1.1.5.1.1 "><p id="zh-cn_topic_0000001127284842_p111178291284"><a name="zh-cn_topic_0000001127284842_p111178291284"></a><a name="zh-cn_topic_0000001127284842_p111178291284"></a>message</p> 98 </td> 99 <td class="cellrowborder" valign="top" width="9%" headers="mcps1.1.5.1.2 "><p id="zh-cn_topic_0000001127284842_p91181929284"><a name="zh-cn_topic_0000001127284842_p91181929284"></a><a name="zh-cn_topic_0000001127284842_p91181929284"></a>string</p> 100 </td> 101 <td class="cellrowborder" valign="top" width="9%" headers="mcps1.1.5.1.3 "><p id="zh-cn_topic_0000001127284842_p12118152919810"><a name="zh-cn_topic_0000001127284842_p12118152919810"></a><a name="zh-cn_topic_0000001127284842_p12118152919810"></a>是</p> 102 </td> 103 <td class="cellrowborder" valign="top" width="70%" headers="mcps1.1.5.1.4 "><p id="zh-cn_topic_0000001127284842_p18118112910811"><a name="zh-cn_topic_0000001127284842_p18118112910811"></a><a name="zh-cn_topic_0000001127284842_p18118112910811"></a>表示要打印的文本信息。</p> 104 </td> 105 </tr> 106 </tbody> 107 </table> 108 109 110## console.warn<a name="zh-cn_topic_0000001127284842_section1363520541678"></a> 111 112warn\(message: string\): void 113 114打印warn级别的日志信息。 115 116- 参数 117 118 <a name="zh-cn_topic_0000001127284842_table2396103815819"></a> 119 <table><thead align="left"><tr id="zh-cn_topic_0000001127284842_row13396183810811"><th class="cellrowborder" valign="top" width="12%" id="mcps1.1.5.1.1"><p id="zh-cn_topic_0000001127284842_p3396153815820"><a name="zh-cn_topic_0000001127284842_p3396153815820"></a><a name="zh-cn_topic_0000001127284842_p3396153815820"></a>参数名</p> 120 </th> 121 <th class="cellrowborder" valign="top" width="9%" id="mcps1.1.5.1.2"><p id="zh-cn_topic_0000001127284842_p13964389819"><a name="zh-cn_topic_0000001127284842_p13964389819"></a><a name="zh-cn_topic_0000001127284842_p13964389819"></a>类型</p> 122 </th> 123 <th class="cellrowborder" valign="top" width="9%" id="mcps1.1.5.1.3"><p id="zh-cn_topic_0000001127284842_p53961138987"><a name="zh-cn_topic_0000001127284842_p53961138987"></a><a name="zh-cn_topic_0000001127284842_p53961138987"></a>必填</p> 124 </th> 125 <th class="cellrowborder" valign="top" width="70%" id="mcps1.1.5.1.4"><p id="zh-cn_topic_0000001127284842_p0396238787"><a name="zh-cn_topic_0000001127284842_p0396238787"></a><a name="zh-cn_topic_0000001127284842_p0396238787"></a>说明</p> 126 </th> 127 </tr> 128 </thead> 129 <tbody><tr id="zh-cn_topic_0000001127284842_row9396163811811"><td class="cellrowborder" valign="top" width="12%" headers="mcps1.1.5.1.1 "><p id="zh-cn_topic_0000001127284842_p33966385817"><a name="zh-cn_topic_0000001127284842_p33966385817"></a><a name="zh-cn_topic_0000001127284842_p33966385817"></a>message</p> 130 </td> 131 <td class="cellrowborder" valign="top" width="9%" headers="mcps1.1.5.1.2 "><p id="zh-cn_topic_0000001127284842_p639610381280"><a name="zh-cn_topic_0000001127284842_p639610381280"></a><a name="zh-cn_topic_0000001127284842_p639610381280"></a>string</p> 132 </td> 133 <td class="cellrowborder" valign="top" width="9%" headers="mcps1.1.5.1.3 "><p id="zh-cn_topic_0000001127284842_p0396183816816"><a name="zh-cn_topic_0000001127284842_p0396183816816"></a><a name="zh-cn_topic_0000001127284842_p0396183816816"></a>是</p> 134 </td> 135 <td class="cellrowborder" valign="top" width="70%" headers="mcps1.1.5.1.4 "><p id="zh-cn_topic_0000001127284842_p039613818815"><a name="zh-cn_topic_0000001127284842_p039613818815"></a><a name="zh-cn_topic_0000001127284842_p039613818815"></a>表示要打印的文本信息。</p> 136 </td> 137 </tr> 138 </tbody> 139 </table> 140 141 142## console.error<a name="zh-cn_topic_0000001127284842_section326012551578"></a> 143 144error\(message: string\): void 145 146打印error级别的日志信息。 147 148- 参数 149 150 <a name="zh-cn_topic_0000001127284842_table79914568813"></a> 151 <table><thead align="left"><tr id="zh-cn_topic_0000001127284842_row899656288"><th class="cellrowborder" valign="top" width="12%" id="mcps1.1.5.1.1"><p id="zh-cn_topic_0000001127284842_p39911567816"><a name="zh-cn_topic_0000001127284842_p39911567816"></a><a name="zh-cn_topic_0000001127284842_p39911567816"></a>参数名</p> 152 </th> 153 <th class="cellrowborder" valign="top" width="9%" id="mcps1.1.5.1.2"><p id="zh-cn_topic_0000001127284842_p099156388"><a name="zh-cn_topic_0000001127284842_p099156388"></a><a name="zh-cn_topic_0000001127284842_p099156388"></a>类型</p> 154 </th> 155 <th class="cellrowborder" valign="top" width="9%" id="mcps1.1.5.1.3"><p id="zh-cn_topic_0000001127284842_p3992564819"><a name="zh-cn_topic_0000001127284842_p3992564819"></a><a name="zh-cn_topic_0000001127284842_p3992564819"></a>必填</p> 156 </th> 157 <th class="cellrowborder" valign="top" width="70%" id="mcps1.1.5.1.4"><p id="zh-cn_topic_0000001127284842_p89920561088"><a name="zh-cn_topic_0000001127284842_p89920561088"></a><a name="zh-cn_topic_0000001127284842_p89920561088"></a>说明</p> 158 </th> 159 </tr> 160 </thead> 161 <tbody><tr id="zh-cn_topic_0000001127284842_row799956389"><td class="cellrowborder" valign="top" width="12%" headers="mcps1.1.5.1.1 "><p id="zh-cn_topic_0000001127284842_p699105614811"><a name="zh-cn_topic_0000001127284842_p699105614811"></a><a name="zh-cn_topic_0000001127284842_p699105614811"></a>message</p> 162 </td> 163 <td class="cellrowborder" valign="top" width="9%" headers="mcps1.1.5.1.2 "><p id="zh-cn_topic_0000001127284842_p99925618816"><a name="zh-cn_topic_0000001127284842_p99925618816"></a><a name="zh-cn_topic_0000001127284842_p99925618816"></a>string</p> 164 </td> 165 <td class="cellrowborder" valign="top" width="9%" headers="mcps1.1.5.1.3 "><p id="zh-cn_topic_0000001127284842_p189916561082"><a name="zh-cn_topic_0000001127284842_p189916561082"></a><a name="zh-cn_topic_0000001127284842_p189916561082"></a>是</p> 166 </td> 167 <td class="cellrowborder" valign="top" width="70%" headers="mcps1.1.5.1.4 "><p id="zh-cn_topic_0000001127284842_p799195610812"><a name="zh-cn_topic_0000001127284842_p799195610812"></a><a name="zh-cn_topic_0000001127284842_p799195610812"></a>表示要打印的文本信息。</p> 168 </td> 169 </tr> 170 </tbody> 171 </table> 172 173 174## 示例<a name="zh-cn_topic_0000001127284842_section738673813104"></a> 175 176``` 177var versionCode = 1; 178console.info('Hello World. The current version code is ' + versionCode); 179console.log(`versionCode: ${versionCode}`) 180console.log('versionCode:%d.', versionCode);6+ 181``` 182 183在DevEco Studio的底部，切换到“HiLog”窗口。选择当前的设备及进程，日志级别选择Info，搜索内容设置为“Hello World”。此时窗口仅显示符合条件的日志，效果如图所示： 184 185 186 187
