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<!DOCTYPE html><html><head> <meta charset="utf-8"> &l...
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字符串输出方法有echo，是一种语言结构，print_r，只能输出一个，var_dump会输出值的类型，var_xeport会以纯字符串输出.可用于php语句。数组有一个填充函数是array_pad,...
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<!DOCTYPE html> <html lang="en"> <head> <...
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3.3 Css盒模型border 边框border：1px 边框宽度 solid 边框样式 #ccc 边框颜色； 边框样式：实线solid，双线double 虚线dashed 点状虚线 dotted。...
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<!DOCTYPE html><html><head><meta charset="UTF-8"><title>我的导航...
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搬运并且修改细节
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