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int i;
for (i = 1; i <= 5; i++)
{ if (i % 2)printf(" <"); else continue; printf(" >"); } printf("$");
这里边的if（i%2）是啥意思
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源代码大师 2021-05-06
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希望对你有帮助：https://blog.csdn.net/it_xiangqiang/category_10581430.html
希望对你有帮助：https://blog.csdn.net/it_xiangqiang/category_10768339.html
xian0-666 2021-02-01
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i % 2这个东西，要理解的话，一个表达式如果后面没有加i % 2 == xxx，则可以看做成立，即i % 2 成立可以表示为i % 2 ==1 ，即i除以2取的余数==1
是疗伤烧肉粽~ 2021-02-01
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if（i%2）也就是奇数时执行，偶数时执行else
是疗伤烧肉粽~ 2021-02-01
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if（i%2）相当于 if（i%2!=0）
也就是当i%2不等于0时执行
快乐胖电工 2021-02-01
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翻译一下，就是if（i是奇数）。
因为，%是求余数运算，当i是奇数时，I%2=1，偶数时为0
赵4老师 2021-02-01
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//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 |
//+------------------+-----------------------------------------+---------------+
鱼丫丫 2021-01-31
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if(i%2)中，表达式 i%2 的结果为整数i对2求余后的结果，结果只有零值(当i为偶数时)和非零值(当i为奇数时)。结果为零（代表假）时，if语句的判断条件为假，所以不执行if后面的语句，而是执行else后面的语句；结果为非零值（代表真）时，if语句的判断条件为真，执行if后面的语句，而不执行else后面的语句。
qzjhjxj 2021-01-31
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7%-5 = 2qzjhjxj 2021-01-31
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7%5 = 2
-7%5 = -2
7%-2 = 2
-7%-5= -2
Arnis1973 2021-01-31
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如i=4;那么i%2就等于0 if（i%2）一般用来判断那个数的奇偶性，i%2==0就说明是偶数，==1就说明i是奇数
Arnis1973 2021-01-31
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i对2求余,就是数学里的余数,比如i=3;那么i%2就等于1.
