一般在浏览器中看到人家打印的带有颜色，所以咋也来实现一下。如下：

效果

在浏览器的效果

使用方式

console.log('x1B[3m%sx1B[23m', 'italic')
console.log('x1B[1m%sx1B[22m', 'bold')
12

在cmd里面的效果

使用方式

console.log('x1B[3m%sx1B[23m', 'italic')
console.log('x1B[1m%sx1B[22m', 'bold')
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一些常用的颜色代码

    'bold'          : ['x1B[1m%sx1B[22m'],
    'italic'        : ['x1B[3m%sx1B[23m'],
    'underline'     : ['x1B[4m%sx1B[24m'],
    'inverse'       : ['x1B[7m%sx1B[27m'],
    'strikethrough' : ['x1B[9m%sx1B[29m'],
    'white'         : ['x1B[37m%sx1B[39m'],
    'grey'          : ['x1B[90m%sx1B[39m'],
    'black'         : ['x1B[30m%sx1B[39m'],
    'blue'          : ['x1B[34m%sx1B[39m'],
    'cyan'          : ['x1B[36m%sx1B[39m'],
    'green'         : ['x1B[32m%sx1B[39m'],
    'magenta'       : ['x1B[35m%sx1B[39m'],
    'red'           : ['x1B[31m%sx1B[39m'],
    'yellow'        : ['x1B[33m%sx1B[39m'],
    'whiteBG'       : ['x1B[47m%sx1B[49m'],
    'greyBG'        : ['x1B[100m%sx1B[49m'],
    'blackBG'       : ['x1B[40m%sx1B[49m'],
    'blueBG'        : ['x1B[44m%sx1B[49m'],
    'cyanBG'        : ['x1B[46m%sx1B[49m'],
    'greenBG'       : ['x1B[42m%sx1B[49m'],
    'magentaBG'     : ['x1B[45m%sx1B[49m'],
    'redBG'         : ['x1B[41m%sx1B[49m'],
    'yellowBG'      : ['x1B[43m%sx1B[49m']