还有,+和*操作符都是以可交换的操作符对(比如,date+integer 和integer +date);. Also, the+ and* operators come in commutative pairs(for example both date+ integer and integer + date); 得到的标度值必须位于Integer .MIN_VAL和Integer.MAX_VAL(包括)之间。 The integer in int_val must be discrete and between val_min and val_max(inclusive).诸如compareUnsigned,divideUnsigned等的静态方法已经添加到Integer 类中,以支持无符号整数的算术运算。 Static methods like compareUnsigned and divideUnsigned have been added to the Integer class to support arithmetic operations for unsigned integers.1. 假如我们不喜欢Integer 、Long等等名称,而是想用更简短的I和L,很简单:. Let's consider that we're unhappy with the namings of Integer , Long etc, we want shorter names: I and L. Easy. 考虑两个我们很不喜欢的命名Integer 和Long,为它们取个简短的名称I和L:. Let's consider that we're unhappy with the namings of Integer , Long etc, we want shorter names: I and L. Easy.
决不要将未知的分数强制转换为integer ,这样有时会导致不可预料的结果。 Never cast an unknown fraction to integer , as this can sometimes lead to unexpected results. 转换布尔值True到Integer 可能会产生-1或1,具体取决于所使用的转换。 Conversion of Boolean value True to Integer may yield -1 or 1 depending on the conversion used. Fixnum和Bignum都是Integer 的子类型-它们分别定义了"常规大小"的整数和大型整数。 Fixnum and Bignum are subtypes of Integer that define the"regular size" and bigger integer numbers. 比如:把int转化成Integer ,double转化成double,等等。 For example, converting an int to an Integer , a double to a Double, and so on. 在上面的例子中,请注意我们利用了Integer 类中变量和方法,而不是先实例化。 Notice in the above example we make use of variables and methods in the Integer class without first instantiating it. 比如,编译器将int转换为Integer ,double转换为Double,等等。 For example, converting an int to an Integer , a double to a Double, and so on. 比如,编译器将int转换为Integer ,double转换为Double,等等。 For example, the compiler converts an int to an Integer , a double to a Double, and so on. 将resource转换成integer 时,结果会是PHP运行时为resource分配的唯一资源号。 If a resource is converted to an integer , then the result will be the unique resource number assigned to the resource by PHP at runtime. 比如:把int转化成Integer ,double转化成Double,等等。 For example, converting an int to an Integer , a double to a Double, and so on. 比如:把int转化成Integer ,double转化成double,等等。 For example, converting an int to an Integer , a double to a Double, and so on. 比如:把int转化成Integer ,double转化成double,等等。 For example, the compiler converts an int to an Integer , a double to a Double, and so on. 在那些没有这样支持的机器上,bigint的作用和integer 一样(但是仍然占据八字节存储)。 On a machine without such support, bigint acts the same as integer (but still takes up eight bytes of storage). 如果参数是正无穷大或大于或等于Integer.MAX_VALUE值的任何值,其结果等于Integer . If the argument is positive infinity or any value greater than or equal to the value of Integer . If the argument is negative infinity or any value less than or equal to the value of Integer . 如果参数是负无穷大或任何小于或等于Integer . If the argument is negative infinity or any value less than or equal to the value of Integer .
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