user-0 提问: *p[10]和(*P)[10]有区别吗？

回复:
user: user-1
content: 从楼上的表中可看出 （）里的东西最先结合 [ ]的优先级高于*的优先级 若类型为char,char *p[10]可以理解为有一个数组，数组的10个元素都指向char类型的数据  若类型为char,char (*p)[10]先结合*p,表示指向十个一维数组的指针 例如 char a[3][10];  char (*p)[10]=a; 可用来访问数组的每个元素。 p[2][1]表示第三行第一列的元素。

user: user-2
content: //C++ Operators //  Operators specify an evaluation to be performed on one of the following: //    One operand (unary operator) //    Two operands (binary operator) //    Three operands (ternary operator) //  The C++ language includes all C operators and adds several new operators. //  Table 1.1 lists the operators available in Microsoft C++. //  Operators follow a strict precedence which defines the evaluation order of //expressions containing these operators.  Operators associate with either the //expression on their left or the expression on their right;    this is called //“associativity.” Operators in the same group have equal precedence and are //evaluated left to right in an expression unless explicitly forced by a pair of //parentheses, ( ). //  Table 1.1 shows the precedence and associativity of C++ operators //  (from highest to lowest precedence). // //Table 1.1   C++ Operator Precedence and Associativity // The highest precedence level is at the top of the table. //+------------------+-----------------------------------------+---------------+ //| Operator         | Name or Meaning                         | Associativity | //+------------------+-----------------------------------------+---------------+ //| ::               | Scope resolution                        | None          | //| ::               | Global                                  | None          | //| [ ]              | Array subscript                         | Left to right | //| ( )              | Function call                           | Left to right | //| ( )              | Conversion                              | None          | //| .                | Member selection (object)               | Left to right | //| ->               | Member selection (pointer)              | Left to right | //| ++               | Postfix increment                       | None          | //| --               | Postfix decrement                       | None          | //| new              | Allocate object                         | None          | //| delete           | Deallocate object                       | None          | //| delete[ ]        | Deallocate object                       | None          | //| ++               | Prefix increment                        | None          | //| --               | Prefix decrement                        | None          | //| *                | Dereference                             | None          | //| &                | Address-of                              | None          | //| +                | Unary plus                              | None          | //| -                | Arithmetic negation (unary)             | None          | //| !                | Logical NOT                             | None          | //| ~                | Bitwise complement                      | None          | //| sizeof           | Size of object                          | None          | //| sizeof ( )       | Size of type                            | None          | //| typeid( )        | type name                               | None          | //| (type)           | Type cast (conversion)                  | Right to left | //| const_cast       | Type cast (conversion)                  | None          | //| dynamic_cast     | Type cast (conversion)                  | None          | //| reinterpret_cast | Type cast (conversion)                  | None          | //| static_cast      | Type cast (conversion)                  | None          | //| .*               | Apply pointer to class member (objects) | Left to right | //| ->*              | Dereference pointer to class member     | Left to right | //| *                | Multiplication                          | Left to right | //| /                | Division                                | Left to right | //| %                | Remainder (modulus)                     | Left to right | //| +                | Addition                                | Left to right | //| -                | Subtraction                             | Left to right | //| <<               | Left shift                              | Left to right | //| >>               | Right shift                             | Left to right | //| <                | Less than                               | Left to right | //| >                | Greater than                            | Left to right | //| <=               | Less than or equal to                   | Left to right | //| >=               | Greater than or equal to                | Left to right | //| ==               | Equality                                | Left to right | //| !=               | Inequality                              | Left to right | //| &                | Bitwise AND                             | Left to right | //| ^                | Bitwise exclusive OR                    | Left to right | //| |                | Bitwise OR                              | Left to right | //| &&               | Logical AND                             | Left to right | //| ||               | Logical OR                              | Left to right | //| e1?e2:e3         | Conditional                             | Right to left | //| =                | Assignment                              | Right to left | //| *=               | Multiplication assignment               | Right to left | //| /=               | Division assignment                     | Right to left | //| %=               | Modulus assignment                      | Right to left | //| +=               | Addition assignment                     | Right to left | //| -=               | Subtraction assignment                  | Right to left | //| <<=              | Left-shift assignment                   | Right to left | //| >>=              | Right-shift assignment                  | Right to left | //| &=               | Bitwise AND assignment                  | Right to left | //| |=               | Bitwise inclusive OR assignment         | Right to left | //| ^=               | Bitwise exclusive OR assignment         | Right to left | //| ,                | Comma                                   | Left to right | //+------------------+-----------------------------------------+---------------+

user: user-3
content: 楼主这个是声明啊还是使用啊

user: user-4
content: int *p[10] p首先是个数组，因为它先和[10]结合 其次，这个数组里面存的内容是int*,也就是数组有10个元素，每个元素都是一个指针，  int (*P)[10] p先和*结合，意味着p是一个指针，他指向int [10]，即p是一个指向一个数组的指针

user: user-5
content: 引用 楼主 qq1041256623 的回复:*p[10]和(*P)[10]有区别吗？ 比如int *p[10]，也可以这么写 int* p[10]，p是一个数组，数组元素p[i]的类型是int*，就是指向int的指针。  比如a[3][10]，它包括a[0][10],a[1][10],a[2][10],a[0],a[1],a[2]可以表示成a[i]==*(a+i)，所以(*P)[10]，p可以等于a+i，p是指向大小为10的数组，p的增一减一是以一行为单位的（比如3行10列）。

user: user-6
content: 看看预算符: * []的优先级和结合性。   *p[10] 和 *(p[10]);  是一样的。

user: user-0
content: 引用 2 楼 misakamm 的回复:你可以把(*P)[10]看成P[0][10] 而*p[10]只能是*(p[10]) *p[]和p[][]差不多意思吧

user: user-7
content: 你可以把(*P)[10]看成P[0][10] 而*p[10]只能是*(p[10])

user: user-7
content: 完全不一样...