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请问一个关于GD的应用

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Release： 2016-06-13 13:49:52
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请教一个关于GD的应用

如图所示，要求使用GD库相关函数实现图示效果，既使用小图片（比如50*50）拼成一个汉字大图
思考了许久都没有头绪，还请各位达人指点一二，不甚感激！

------解决方案--------------------
先在目标图片的50分之一的样板图中写入所需汉字（黑字白底）
创建大图，如果你的内存不足，可能创建失败
遍历样板图，对于每一个点，向大图拷贝小图片

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