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数据分析师2017-09-30 23:34:49
What is the difference between while loop and for loop? -PHP Chinese website Q&A-What is the difference between while loop and for loop? -PHP Chinese website Q&A
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迷茫2016-12-22 14:05:56
for循环的变量可以声明在循环体里 ，适用于循环体已知的循环
while要在循环体外声明一个全局变量用于判断，适用于循环体未知的循环
