微信小程序小技巧，图标的命名规则，查找更快捷，使用更方便，

baseImg是路径公共部分：

arrowright_000_22:baseImg+'arrowright_000_22.png',

arrowleft_000_22:baseImg+'arrowleft_000_22.png',

arrowright_26a0ed_24:baseImg+'arrowright_26a0ed_24.png',

arrowright_999_25:baseImg+'arrowright_999_25.png',

arrowright_d0d0d0_30:baseImg+'arrowright_d0d0d0_30.png',

arrowright_999_30:baseImg+'arrowright_999_30.png',

arrowright_000_30:baseImg+'arrowright_000_30.png',

arrowdown_666_30:baseImg+'arrowdown_666_30.png',

arrowup_666_30:baseImg+'arrowup_666_30.png',

arrowright_333_30:baseImg+'arrowright_333_30.png',

arrowdown_333_30:baseImg+'arrowdown_333_30.png',

arrowup_333_30:baseImg+'arrowup_333_30.png',

arrowright_000_40:baseImg+'arrowright_000_40.png',

arrowdown_666_40:baseImg+'arrowdown_666_40.png',

big_close_333_44:baseImg+'big_close_333_44.png',

big_close_fff_44:baseImg+'big_close_fff_44.png',

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公共css部分

.icon_24{width:24rpx;height:24rpx;}

.icon_30{width:30rpx;height:30rpx;}

 .icon_40{width:40rpx;height:40rpx;}

.icon_44{width:44rpx;height:44rpx;}