forin - JavaScript | MDN
2 · for (variable in object) statementvariable,variable。 object Symbol。
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20216-
Liming · . 20216. 《》《》,《》356（1）、《Technical Code for Design and Calculation of Combustion System of Fossil-fired Power Plant》 …
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JavaScript For
For . for 。. 1 （）。. 2 （）。. 3 （）。. 1 （var i = 0）。. 2
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20216-
Liming · . 20216. 《》《》,《》356（1）、《Technical Code for Design and Calculation of Combustion System of Fossil-fired Power Plant》 …
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forof - JavaScript | MDN
Liming · for (variable of iterable) { //statements} variable,。 iterable 。
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