2.4 Language selection structure
if conditional statement
if (condition statement) {
代码块
}
if........else语句if (determination condition) {
execute statement. 1
} {the else
executing statements 2
}
if........else,if........else语句
if (determination condition) {
execute statement. 1
} the else if (judgment condition 2) {
execute statement 2
}
.
.
.
else if (condition determination n) {
execute statement n + 1
}
switch conditional statements
switch (expression) {
Case 1 target:
execute statement 1
BREAK;
Case target 2:
execute statement 2
BREAK;
·
·
·
Case target n:
execute statement n-
BREAK;
default: * No compliance
executing statements n + 1
BREAK;
}