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true false
1 true 0 false
2023-05-020個贊
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‘字符串’ “$bianliang”.’可以拼接字符串’ “$bianliang可以拼接字符串”
‘字符串’; “$bianliang 可以拼接字符串”; “$bianliang”.’可以拼接字符串’;
2023-05-021個贊
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函數(shù) var.dunp(); 打印數(shù)據(jù)類型，顯示對應(yīng)變量的長度和值
